Nissan - Sentra :: 2003 - Service Engine Light Came On / Code P0302
Jan 26, 2011
I recently had my "Service Engine Light" come on, Sunday to be exact. I went through my normal procedure of checking the fuel cap and drove several times to no avail. So today I ran by Autozone where I got the P0302 code. Now I realize I could go in for a tune up, but I'm a college student and just spent all my money on books so I'm looking for some DIY solutions before I lay down any large amounts of money. Where to start. As for a bit more background, I filled my car up with gas on Friday, the light came on Sunday and the car will shake on initial idle of the car.
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So recently my service engine light came on suddenly and I saw my tachometer acting a little weird along with my car vibrating slightly at stop lights. I know I should get this checked out because it's better to nip this problem in the bud early on before the problem worsens or starts to affect other parts of the car. My questions are,
What the problem is? I've read online that sometimes the service engine soon light comes on because of small issues that can be resolved by e.g. tightening the gas cap etc etc or it may be something that requires professional attention. I don't want to have to see a mechanic if the issue can be resolved by myself.
I've had terrible experiences with mechanics, what often happens is that I get charged for work done and the problem isn't solved. This happened once with an individual mechanic and I'll probably look at certified dealers such as Mossy Nissan. But that being said, the reviews of all the Nissan certified service centres in my area have horrible ratings and reviews so even going to them is a hesitation for me.
How can I protect myself from getting ripped off? What information should I ask for or tell them? Do i ask them for the codes when they run a diagnostic test and what should I expect to get charged for and what should I expect not to get charged for.
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I have a 2006 nissan sentra about 58,100 miles. The car recieves the regular oil changes. I got a service engine light and a mechanic saw it. He scanned the car and nothing came up as a cause so he cleared the light. The light has popped up again. What can I do ?
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I have a manual 2000 Nissan Sentra with 101,000 miles. The Service Engine Soon light stays on. I was told it was an vacuum leak or mass air flow or basically the mixture of oxygen is off. (I already had one mass air flow put in a few years ago.) I have been ignoring the message. We went camping and drove twice to 9,000 feet. No problems on road at all. The car runs great. In fact we got 35 mpg on the trip. Am I possibly hurting the car by ignoring the message?
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(This is a continuation of a previous thread: [URL] ..... )
I have a 2005 Nissan Sentra with 75,000 miles on it. Several months ago (see above link) the check engine light came on with a P0304 cylinder 4 misfire code. The only symptom appears to be a rough idle/shaking every 3rd or 4th start for the first 10-15 seconds, but runs smoothly afterwards. My mechanic replaced all my spark plugs (I had new plugs put it at 50,000 miles for the same issue) of which the one from cylinder 4 was worn down much more than the rest. The problem persisted so they replaced my fuel pump and fuel filter and switched the spark coils from cylinder 4 to a different cylinder, but the code still read cylinder 4 so it wasn't the coil. That was back in October.
I took my car back in last week for the same problem and without starting my car (because the problem is worst on the first start) they pushed my car into the bay and did a smoke test, no leaks in the fuel lines. Then they checked the cylinder and said that there was "excess" fuel in the cylinder and replaced the fuel injector. Then after ~3 days the check engine came back on with the same P0304 misfire code. Previous repairs/diagnostics rule out spark plugs, coils, fuel pressure, and injectors.
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The Service Engine Soon light is on in my 2001 F-150. I checked the code and got PO156 generic O2; circuit (bank 2, sensor 2). What are the most common things I should look at? The truck appears to be running fine, no driveability issues.
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My Service Engine Soon light came on early last week and I got the code P0442- Evaporative Emission: System leak detected (small leak).
What are the most probable things I should look at?
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I have a 2002 f150 4.2 code p0340, ran rough, replaced cam sensor. drove after replacing and it runs fine now, code and service engine light comes on after restarting. from what i have read could this be a wiring problem?
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Last week my service engine light came on. Friend checked it with his code reader. Got a P0402 code insufficient flow EGR valve. I have read several different threads on this subject on another Ford truck forum, slightly confusing me. Should I trust the code and just replace the EGR valve or do a number of other things that
1. Clean the throttle body first?
2. Test the EGR valve by blanking it off?
3. Test the DPFE valve?
4. Replace the DPFE valve instead of the ERG valve since the EGR valve rarely goes bad?
5. Only get OEM parts since after market parts do not last?
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My 2002 Nissan Sentra's check engine light keeps coming on. It came on about three weeks ago, and our mechanic replaced an oxygen sensor. Two or three days later, it came back on. He figured the first sensor was faulty, and replaced it with another. The light came on as I was driving away from the place. The mechanic replaced some of the wires. And now, a week after that, the light came on again.
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I filled up my gas after it was a little under half a tank . I tighten my gas cap . I started my car then out of the blue the check engine came on. I shut off car and tighten gas cap again making sure it was as tight as it could be . I started my car again and the solid check engine light stayed. It is a 2006 Nissan sentra automatic 1.8 . About 70,000 miles
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I was on the way back from the weekend trip and got a service engine soon light. I didn't notice any lack of power, rough idle or hard starting cold or hot. So we pushed on home. I checked the codes and it is the P1211.
Doing some research it seems the ICP is not as expected so I hooked up my phone with the Torque app and the IPR and ICP seem to be close to normal at idle and running. I din't see any high IPR %.
At idle the IPR was around 15.5 cold and 10.1 after a short run to the store and back when it warmed up a bit. ICP was around 690-720 cold and 470-490 when i got back.
Does that seem like normal readings? I cleared the codes and the CEL comes back on right away after starting the truck. I do have a TS performance chip that I will take out and see if that could be causing any problems. What else should I be looking into?
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I live in CA and recently my car passed the smog test, but failed inspection because the check engine light on the board was on. When the diagnostic test was done, it said there's a problem with the catalytic converter. It's so frustrating because the car's emissions are within limits. , I was thinking... Is there a way to get the catalytic converter to run cleaner without replacing it? If it can run long enough to pass the diagnostic test, my car could pass inspection.
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I have a 2005 Santa Fe with the 3.5 with 112000 miles on it. I had the engine light come on with the code P0302 cyl #2 misfire, I got spark plugs, plug wires to do a tune up on it. I changed all of it and got it back together, started it up and it still had a miss to it. I then took the front spark plugs out and did a compression test on it. #2 was at 85, #4 was at 120, and #6 was at 160. I couldn't check the back cyls because I had already put the intake back on. I then did a wet test, and all the cyls came up to 160. So this tell me that the piston rings are bad in #2 and going bad in #4. I have kept all the oil changes up and up to this point I haven't had any trouble with it. Having this problem with there 3.5?
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i have a 2008 maxima with 30000+ miles. its service engine soon light came on recently. i disconnected the battery the light would go off, but would come back on again after a few days. it happened several times now. once i got a code P0011 from autozone while the light was on. the last time the light was on was a week ago and this time the light finally went off by itself yesterday. i took my car to a dealer today. a service advisor told me the reading on his code-reader is NO CODE and the car is fine!. so what have happened and what is wrong with it? could it be serious?
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I just purchased a 2000 Nissan Maxima GXE with 219,000 miles. I've had it less than two weeks, and the Service Engine Soon light just came on. I live somewhere that requires emissions testing in order to register the vehicle. My temporary plate will expire soon, so I need to get the car to pass emissions.
This is my first Japanese car and first non-American vehicle. I didn't know until after I had given the check to the guy selling the car that he used premium gas. He said that Nissan recommends it. I've never driven a car that required premium gas before and wasn't keen on the idea since here, it is 40¢ a gallon more expensive than regular unleaded.
I spoke with my landlord about it, as he is a certified Honda mechanic. He told me to first try getting half a tank of regular unleaded and putting it in with some fuel injector cleaner. He said if I didn't notice any decrease in performance or knocks, to then just add a bottle of of fuel injector cleaner to every other tank of gas.
I got a half tank of regular unleaded with a bottle of fuel injector cleaner and didn't have any issues. I then filled the tank with regular without any fuel injector cleaner. I used about ¾ of that tank when the service engine soon light came on. I took the car to Valvoline to get the codes read, and while they couldn't give me any code numbers, they said it was something to do with emissions.
Here are my questions:
Is it possible the light came on because I switched from premium to regular unleaded or perhaps because I would need to add fuel injector cleaner to every tank of gas I get and not every other tank as my landlord said he does with his car?
Should I try either adding fuel injector cleaner to every tank of gas or just switch back to premium? If I try either of those, and one of those was the problem, how long would it take for the Service Engine Soon light to turn off?
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I just bought a 2003 F250 from a used dealer. Unfortunately the service engine light keeps popping on and putting out the code P0401, I have replaced the EGR, cleaned the inside, and cleared the code. However it continues to keep popping up and then it will turn off after a couple of days. I mostly drive in the city and the code generally only pops on when I drive on the highway. I have also noticed a lack or delay of power, when I really hit it hard, I think its because the computer is keeping the egr valve open. What it could be?
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I have 2003 f250 7.3 automatic 181,000 miles completely stock. Never had chip,tuner or anything on it. I am second owner and got it when it had 70,000 miles on it. Ok here we go I live on top of a mountain and soon as i start up the mountain or any steep hill, or pull or tow something my service engine light pops on. First time it came on I took it to diesel shop they hooked it up to scanner and said it was code p1211 said icp sensor was bad so they put new one on. Couple days later light started popping back on so i decided to order a auto ingenuity after doing some research.
Hooked up to truck started up mountain while scanning at wot light pops on code p1211 and think it was live data I remember seeing icp pressure at 1922 and duty cycle at 63% i was trying to drive and read it at same time and my lap top went dead. What does this reading mean 1922 pressure/ at 63% cycle done little research but dont really understand. Year and half ago replaced all orings on all injectors, new rebuilt hpop pump. New ipr valve, glow plugs, past month 2 different icp sensor new,and new ipr valve new pig tails on both and light still popping on.
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Have a 2004 Nissan Murano with 149K miles. Service engine light came on about 2 months ago and the dealership said the catalytic converter needs to be replaced...for $1200 parts/labor. Car starts fine but runs very rough and I get a thumping noise from under car for the first 10-15 miles. Also noticed a drop off in MPG from normal 20 to about 17.5. I'm hoping to keep this car a while, but need assurance the Cat converter is really the problem. Saw several similar posts make reference to the O2 sensor. How can I be sure what's needed to fix this?
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I have a 2005 Nissan Altima with a SERVICE ENGINE light that refuses to stay off. Initially, upon hooking the car up to my mechanics computer, the code indicated a faulty crankcase sensor. I purchased the sensor and it was installed. I was then told to drive 30 or 40 miles at various speeds, stop and go traffic without shutting off the engine to reset the computer. This was done twice without success. The light remains on . The inspection was due in December and this is becoming very frustrating not to mention illegal to drive these 40 mile circuits. I have even disconnected the battery, reconnected (light off!), and drove ANOTHER 40 miles. The light stayed off while driving but came back on after restarting. 3 times , 2 different mechanics reset the cars computer with theirs. 4 different computers still diagnose a faulty crankcase sensor. The sensor has been replaced twice. Everyone is stumped and I really don't want to take the car to a dealer.
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Check engine light came on. Codes are P0300, P0302, P0304. Plugs were previously changed. Plugs look good. Changed both coils. Light still one. Injectors also previously cleaned. What else should we check for? Valves hanging? Anything else to check for?
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