Yaris/Scion & Vitz :: CEL Comes On / Power Loss On Throttle But Engine Idle
Jul 21, 2013
I have a toyota yaris d4d (2002). My engine light comes on, I lose power on throttle but engine will still idle. I turn engine off for a few minutes, then restart, I then carry on driving as normal as if nothing has happened. This happens every 2 weeks. Error code is p1121(accelerator pedal position sensor range/performance problem). How to rectify it ...
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My car now has a little over 370,000 miles on her. The other day I noticed a hesitation while accelerating, like an instant loss of power/ jerk. It didn't do it much at first and the higher the RPM's the less it seemed to do this. Once I got the car up to 60/70 mph it was pretty much unnoticeable.
What it was. Thought maybe a vacuum leak. Nope. Maybe a bad TPS or CPS (didn't end up checking those), Thought maybe a bad injector or O2 sensor (didn't end up checking those either). I did try some fuel injector cleaner though but saw no change. I had a feeling it had to be a sensor or something because the motor itself runs great other than the intermittent misfire.
So I drive it in to work this morning. (1 hour drive each way) and aside from the minor hesitation/bucking/jerking while accelerating, everything went pretty smooth so long as I had the car up to highway speeds. So I get off from work and start driving home. The problem seemed to have disappeared completely for the first 3 or 4 miles, then all of a sudden it started up again. Only this time it had gotten much worse.
I could no longer get the car to go over 70mph and when I came to a stop the car sounded like it wanted to die (but never did). It took forever from a complete stop to get past all of the sputtering and hesitation/missing to get the car up to speed. It would keep cutting in and out (the motor bogging down, then gaining normal power for a second or two and so on and so forth). So I decide to take it to a shop to see if they can diagnose it.
The guy hooks up his code reader and looks at the car for a little bit out in the parking lot. All he could do was suggest to change the spark plugs and said that that was where he would start. So I went ahead and listened to what he said about the spark plugs (even though I knew there wasn't anything wrong with them because I had just changed them about a year ago). So I'm changing them out and when I take out cylinder 1's coilpack I notice it's wet. It seems somehow water or moisture had gotten down into there. So I dried everything off and changed the plug (the old one looked fine but I changed it anyway) and I went ahead and changed out all the rest of the plugs too (they all looked fine as well)
So after seeing the water around the #1 spark plug and coil pack, The injectors are right in front of there, so I decided to take the plug off the injector and take a look.
Sure enough, I took the plug off of the injector right in front of the #1 spark plug (far left spark plug) and wouldn't you know it, it had water down inside of it. I pulled the plug off of the injector next to it and it had water in it too (but not as much). How water could have gotten down in there but it did. I took a Q-tip and used it to dry up all the water down in there. Put everything back together and took it for a spin and everything was back to normal.
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I am buying a Toyota Echo that the engine shakes on Idle and the shaking increase a bit when the AC is On ....
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I have a 2003 Toyota Echo 1.5. About a year ago the cel went off and on intermittently and I got a p0511 code. For the past few months, the light has stayed on steadily except for a 2 week period when it stayed off. When the cel is on , the car idles slightly low for about a second just after start up. When the engine is warm, it idles steadily about 400 rpm above normal idle. When the cel is not on, the idle is perfect both at start up and when the engine is warm. I did take off the IAC and cleaned it, but it already looked spotless inside and seemed to operate smoothly.
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My girlfriends Toyota Echo has been giving her problems it seems. She says that it will randomly not respond to the pedal being pushed. She's not great with cars, but says she doesn't hear it revving. I was thinking dirty fuel filter, but I would think it would be running rough all the time if it was clogged? What it could be?
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I have a 2001 Echo 5-speed that I bought it November. Loving it so far. One thing I've noticed is an electronic-like whistling sound whenever I'm applying light throttle. The sound goes away if I left off the throttle, or if I give it more gas. When I say light throttle, it's when I'm applying enough pressure to maintain maybe 1500 RPM in neutral, so not much. It's only at that specific point that I'll hear the noise, and it's in all gears and not related to vehicle speed. I've searched through the usual channels but didn't find anything related.
In the few months before I bought it the previous owner had the MAF sensor, alternator, and water pump replaced by the dealer so those components are covered under the 1 year/20k parts warranty if they may be a culprit. I'm hoping to narrow down what the problem could be before I take it in for routine service anyways.
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I am looking to troubleshoot the problem I am having with my 2000 Toyota Echo Automatic with 253,000 Kms
Engine will at times bog down, loose power and skip, usually giving it more gas will straighten it out. Car is now stalling after driving and stopping unless you rev the rpms higher. The car will start in my driveway and idle with no problems however sometimes it will skip after a few minutes.
Codes I keep getting is P0171 Fuel too lean bank 1 and P0301 cylinder 1 misfire (for cylinder 3 before we cleared the codes)
Here is what I have done as I am lucky enough to have a 2000 Echo so we could switch some parts for testing:
Switched the coils, spark plugs and MAF sensor (didn't look dirty) What concerns us is when you unplug coil 1 from the engine there is no change in the idle (as there is a difference when unplugging the other coils)
We have checked for vacuum leaks but cannot find any.
Should also mention the engine is not overheating or burning oil.
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I was driving home and I lost power in my engine. When I gave it gas you can hear it miss fire and loose power I got it home and it starts and idles but not smooth. What should I be looking into at this point? I'll check the coils and plugs now but I'm not sure after that. I heard about a bad ecu but it still runs so idk.
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I'm trying to remove the throttle body on my 2002 Echo. However, the transmission dipstick tube is in the way of one of the throttle body bolts. How can I remove the transmission dipstick tube so that I can remove the throttle body?
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I got a 2001 Toyota Echo 1.5L that was running rough on cold start ups. Got a trouble code saying the ECT was out of range, replaced that and after firing it up it started to hunt and had a very high idle, I unplugged the Idle air control and it still continued to hunt. I smoke tested it for vacuum leaks and no leaks. After plugging and unplugging things to see what made it disappear it now stopped hunting but maintains a idle of around 2000rpm in park or neutral, in drive or reverse the idle lowers to about 900rpm.
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What normal idle rpm is with a/c on with automatic transmission. Mine fluctuates between 680 to 710 with condenser fan on low and 900 when high speed condenser fan is on.
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Mother in laws car had a bad misfire that goes away during idle. It seems to misfire during take off or slowing to a stop and Intermittently during cruise.
Came in with codes p0300 - random misfire and p0304 misfire cylinder 4
What I have done so far.
-Checked the oil
-Checked the plugs - they were bad so replaced them with ngk plugs
-part number - BKR5EGP
Misfire was showing in cylinder 4 on live data still
-Swapped coil 4 and 1
-Misfire moved to cylinder 1
-Swapped cylinder 1 with 3 to be extra sure and mis stayed on 1
-Swapped back to 4 and even 2 mis stayed in 1. Weird
-Pulled all plugs and checked compression getting 170psi
-Swapped plugs around in case 1 is faulty no luck
-Swapped number 1 and 2 injectors with no change.
So my thoughts now are leaning towards an ecm or a valve thing but would those not be on or off fails? It idles great and cruises great it's only bad we coming to and leaving stop.
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I have taken this problem to the dealer 3 times in the last 6 months and they claim not to notice any vibration or rattle. However, whenever I am at a stop sign or stop light with the car in Drive (automatic trans), a loud vibration sound can be heard and also felt in the steering column and the brake pedal. As soon as I press on the gas pedal again, the vibration goes away. The only other way to stop the noise is to place the car into Neutral. What might be causing this? Apparently, the noise is not audible outside of the vehicle since none of the techs at Toyota were able to hear a rattle or vibration.
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My Echo died on me this morning and would not restart. I was at a light at the time. I pushed it aside, waited a bit and it restarted. I made it to work and it died again after several hiccups along the way. It then died in my parking spot but would restart. It has 192k miles on it.
It was acting weird earlier this week in that it would lose power (not electricity) while moving and then continue on. It seemed to work if I gave it more throttle. I feel like its fuel related but I don't have a lot of spare money to guess at the problem unsuccessfully.
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I have a 2010 Toyota Yaris four door. When I am stopped while in drive, the front left part of the vehicle rattles, sounds like it is around the front driver-side tire. If I change the car into Neutral, Reverse, or Park it will go away, but Drive or any of the lower gears will cause the rattle. I have only had the car for about 2 months and it has been doing this for a couple weeks.
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My 2000 Echo (auto) developed a rough idle especially while in gear and with the AC running. It's a pretty rough vibration that seems to come from the left side (belt side) of the motor. When at a stop light with the AC off it is less pronounced.
Last year I had the belts and motor mounts replaced. Well let me rephrase.. I paid to have them replaced, not sure if they actually were. But the car ran great all year until the other day. The belts might be due for a replacement. They sometimes squeal in the morning as I accelerate from a stopped position while running the defrost. Also there is no CEL.
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I have a Toyota Yaris '07 ... The car has been running pretty rough and ready over the last few weeks... During idle, it started rattling & shaking pretty hard... this progressed with the add-on feature of changing revs during an otherwise steady drive..... It chose the (in)opportune time of driving with our 3-year-old son, grumpy at that time, down heavily trafficked busy roadways during the holidays and stalled 3 x times.... It is in the garage/service center for the 2nd time ... They are stumped. They've checked air, fuel mix, filters, injectors, spark plugs, etc., basics. Computer diagnostics show nothing (briefly showed fault at Cylinder #4 but then that changed and now showing nothing). Toyota Technical is (apparently) stumped. They are talking about needing to order a new computer from Japan (minimum $1200 just for the part).
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My 01 Echo coupe vibrates at idle and when running. I changed all mounts, with OEM ones,,,changed the bent cross-member, installed new rack and pinion, new bushings, terminal, bushings...and still the lil guy vibrates like a rattle snake tail.
I noticed that time chain is a bit slacked... what may be the culprit for that vibration, you can feel the vibs at gas pedal, dash and steering wheel.
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I have a 2002 Toyota Echo. I just purchases a Creader V code scanner. My car is throwing a P0171 code. The light only comes on at idle or while going under 10 mph.
The data from the reader was:
Trouble Code: P0171
Fuel System sta B1 : CL, using HO2S
Calculated Load: 11.76%
Coolant Temp 188.59 degrees
The Freeze frame data was:
ST Fuel B1: -3.91%
LF Fuel B1: 36.7%
Engine speed: 795.5 RPM
Vehicle speed: 0 mph
Intake Air Temp: 82.4 degrees.
I went back today and ran live feed on the O2 sensors. I'm not sure what STF of O2S: STF means. That was another figure displayed on my code scanner.
The O2S S1 was reading between .04 and about .82. The graph looked pretty normal (I guess) in regards to going up and back down between 0 and 1. I don't know alot about mechanics, but I seen a youtube video of a graph showing it going up and down and what is normal. Mine did that on S1.
O2S S1: STF was: 3.89 and -1.57%
O2S: S2 was a different story. It was between like .58 and .66.
The O2S S2: STF didn't give me a value at all. It just said " --% ". The graph of this was slowly going up but in a small range. It started at like maybe .4 and would go up to say .5. The next wave would be like .45 to .55, then .50 to .60, then .58 to .66 etc. So it was not ranging just between 0 and 1. It had a very tight range that gradually increased upwards.
I built my own smoke machine before testing with the code scanner and I didn't get any smoke coming out of the car except for around the air filter housing where the lid meets the bottom portion. I don't know if it's because I had the air filter wrapped in plastic wrap. Can I have an air leak where the filter cartridge connects that would case a lean code P0171? Maybe I should go try to smoke test again. I did it about 3 weeks ago and I can't recall exactly where I had the smoke going into. I thought I disconnected the PVC hose from the brake booster and plugged it in there. I assume the smoke would get thru the whole system. It took about 2 min before the smoke came out of the filter housing.
The car only sets a lean code at idle or going less than 10mph and I'm coasting in a residential area.
I have an inspection coming up in May and need to get this thing fixed before that. I can't find any other air leak, but I wasn't sure a leak around the filter would cause this and I'm not sure the leak wasn't caused by the plastic wrap.
I'm thinking my only other prob could be fuel related. Fuel filter, fuel pump, clogged injector, or can my O2 sensor be bad and causing this? I've already replaced all spark plugs and coils as well as the PVC valve and cleaned the MAF sensor with the appropriate spray.
The car runs ok. The exhaust seems to smell RICH. Like Gas. I don't think my fuel economy is as good as it use to be. It has dropped from as hi as 42 mpg to between 38 and 40 if I'm lucky.
Back when I was having problems before and realized I had a bad coil, I had tried some injector cleaner. Why the codes were back then, but I had erased them and the car ran fine for about 2 months and the light came back.
My MAF sensor was .14 lbs when I was watching the live data above. I plugged my fuel pressure tester directly into the fuel line coming from the fuel tank and got a reading of between 42 and 44 lbs (car not running, just by trying to turn the engine over). I don't know if that is as accurate (or useful) as having the fuel pressure tester on the car and in line to allow the car to start up and run and watch the tester. I have to wait until my part comes do run the test that way.
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I've been having trouble getting my 2001 toyotoa echo to start in the cold weather and STAY Idling. All I can do to keep the car going is hold my foot on the gas until it warms up, then it stays running, low idle, but running. It starts fine the rest of the day, but that first start in the morning doesn't take. The check engine light comes on and stays on, and the car seems to idle rough at stops.
At first the Mechanic I took it to (good guys) cleaned out my throttle body (physically and chemically) and this seemed to solve the problem for a couple weeks. I'm located in Toronto, Canada, and we're heading into cold weather and I just want a car that starts. It started up again recently and I'm now being told (on my second visit to the mechanic) that it's my throttle body/idle control and that this part needs to be replaced, to the tune of 627.00 + labour.
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My friend has a 2003 Toyota Echo that is throwing a cylinder misfire code. Original code is P0302 and P0302PD. The car is idling rougher, kind of sounds like "put-put-put". Also, the car has no power at all. He lives on a hill and he can't even pull out of his driveway. Lastly, the smell of the exhaust is gassy.
We have changed out the spark plugs...no change. Next, we bought a new ignition coil for the number two cylinder...no change. So, maybe its the wiring. Put the new coil onto the number 3 cylinder and the number 3 coil onto the 2 cylinder. Low and behold, the misfire code changes to P0303 and P0303PD.
Thinking we might have gotten a dud of a coil, we bought another. Same thing...new coil on 2 code is P0302...new coil on 3, code is P0303. Could we just have gotten two bad coils? Oh, coils were a BWD brand coil and Duralast brand. Should we just go OEM from dealer? OR Denso from Advance Auto?
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