Ford F-150 - 1997-2003 :: High Idle - OBD2 Code With 1506?
Apr 29, 2012
corrected vaccum leak. Still high idle and obd2 code 1506???
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Apr 29, 2012
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Ford F-150 - 1997-2003 :: P0401 OBD2 Code / Vacuum Leaks
I've had a 0401 code on my truck for the last two years. I've replaced the EGR valve and the dpfe sensor a couple of times, with fomoco parts. Ive also cleaned out the egr tube that comes off the exhaust manifold. In this time I also discovered a couple of vacuum leaks and replaced those. I changed the pcv valve, tried running 93 octane gas, and had a mechanic friend run a special smoke through the vacuum lines to find more leaks. Also put a brand new gas cap. I have an obd computer and cleared the code repeatedly but the light always returns.
View 14 RepliesFord F-150 - 1997-2003 :: OBD2 Code P0001 Fuel Volume Regulator Control Circuit Open?
Where to decipher engine codes? I pulled a P0001 Fuel Volume Regulator Control Circuit Open code .
View 11 RepliesFord F-150 - 1997-2003 :: 1999 - No OBD2 Port And Good Fuse?
I just picked up a 99 F150 for a song because it has an issue with the PATS system and the po doesn't have a clue on what to do with it. I bought a new ignition cylinder and Auto Enginuity to program the PATS. The problem I'm having is that I'm not getting anything from the OBD2 port and the #3 fuse is good. What else would cause the port not to have signal?
View 4 RepliesFord F-150 - 1997-2003 :: OBD2 Port Stopped Working - Fuse Not Blown
My 03 5.4 the obd2 port isnt working i have tried 4 bluetooth adapters and a snap on scanner and nothing will connect to the ecm. im having problems and trying to read codes my check engine light isnt on but that don't mean anything. my truck is running really rich and blows a little bit black smoke when i rev it up after its been idling a few min and getting horrible gas mileage again. yesterday i went to start it and i had to crank on it 4 time before it finally started and then when i reved it up it almost died on the way back down but it caught itself. then today i go out and it starts right up and runs fine but its still running rich but i still cant get an obd2 adapter to connect to the ecm. I checked the fuse and its not blown my cigarette plug and the power port both work. i really dont know where to start in trying to figure out this problem. Right now iI don't really want to take it to a shop right now.
View 4 RepliesFord F-150 - 1997-2003 :: High Idle Now No Electric
So, yesterday I noticed the idle was higher than normal. In drive I'm at 950 to 1000 rpm and in park it's about 1150 to 1200. It's kind of like a cold start but never backs off and does this when things are warmed up also.
I replaced the IAC Valve about a month ago cause I got tired or cleaning it. The condition was a low idle and fluctuation when I came to a stop.
To test for the new conditions I have been reading that if I pull the plug on the IAC that the idle should drop if it's working?
If there is no drop in RPM then it could be the TPS? 1999 5.4....
Ford F-150 - 1997-2003 :: High Idle After Warm Up
1999 F-150 5.4L. I just removed the clutch fan and installed two electric fans about two weeks ago. The same evening, I took a short drive and noticed the idle was way higher than it normally is. Its idling about 800 to 900 RPM. Now, the weird part.....Startup is normal, as in the idle jumps up for the warmup, then drops to the normal 600 to 700 range. after a short drive, the idle is high and noticeable at a stop.
Sometimes, if I let the truck idle, after about 10 mins or so the idle will slowly start creeping up a little at a time till it hits about 900 or so and will level off. I have tried the IAC, I have tried disconnecting the battery and letting the PCM reboot, I have checked ALL my vacuum lines, I have checked my TPS sensor and voltages, checked my MAF sensor and voltages, fuel pressures, everything I could think of...
I hooked up my scanner (Auto X-Ray 6000) and checked all my running data, nothing really sticks out to me as outta whack. No codes set..
Ford F-150 - 1997-2003 :: 4.6L - High Idle At Startup
I've got a 2003 ford f-150 with a 4.6l 150000 miles. when it is started the rpms are at 2000 for about a min. and a half then it drops to normal when its started cold. when started at operating temp. The rpms are at 2000 for about 30 to 45 sec then drop to normal. The iac, upper and lower intake gaskets, intake run controller valve, dfbe, low intake and shield, coolant temp. sensor, intake air temp. sensor, egr, egr regulator valve, maf, ecm have all been swapped out no vacuum leaks all line in good condition tps voltage reading of 0.84v...
View 2 RepliesFord F-150 - 1997-2003 :: 2000 - High Idle With Codes
I will try to keep this short. Picked up a 2000 f-150 4.2 for my nephews first truck last night. Bought it blind against my better judgement, but the price was right. Got it home, odometer didn't work, fixed the solder joint and was happy it only had 132k on it. Heater core was plugged solid. Got it flushed and at least now its has luke warm heat until I have time for a full coolant flush and new core.
Next on my list is the high idle and engine lights. Its idles around 1300-1700, cold or hot sometimes it drops down. I only have a cheap scanner, but I have 2 codes. PO171 and PO174. Where should I start with diagnosing this? I would assume vacuum leak. Any common spots to check on these?
Ford F-150 - 1997-2003 :: High Idle - Delay In Shift Intermittently?
So my F150 (with 4r70w) has a weird issue. If I jump on it (only briefly) and then drive normally it gets stuck in a high idle/late shift mode. Sometimes it won't even shift until 3500 - 4000 RPM. If I stop and restart it will usually go back to normal (depending on how warm the tranny is, the warmer it is, the less likely to fix on restart). Now I understand that if you give it a lot of gas it will shift later, but like I said, it get's stuck in this mode even if I have a light foot after. The really weird thing is that it does this after cruising on the highway for a while. Also, the OD light does not flash.
As I'm writing this, I just realized that a common thing is warm tranny fluid. I'm not sure if it's the tranny because the high idle and the fact that it will shift fine if babied. There are no codes.
Here's what I've done: Flushed tranny fluid and filter (full flush, not just the little bit with the filter change), replaced TPS, replaced PCV, replaced IAC valve, replaced a few vac lines, and cleaned entire throttle body (including EGR valve).
Ford F-150 - 1997-2003 :: High Idle In Park / Neutral And Shifting
I have a '98 F150 4.2l with 230k miles on it. A couple of days ago when starting, I noticed that the engine kept racing instead of idling down like it normally does and the weather here in Arkansas has approached the 80 degree mark. The engine also doesn't idle down when shifting (I have a manual tranny). Where to start? I don't have any codes stored other than two for bank 1 and bank 2 running lean but they popped up many miles ago. I'm thinking either a vacuum leak or throttle control. I checked the operation of the cable and the throttle valve and they appear to be fine. Maybe the idle air control?
View 4 RepliesFord F-150 - 1997-2003 :: 1999 - High Idle After Cleaning Throttle Body
High mileage 1999 4.6 4wd 5 spd: Needed to replace the rear ABS sensor and decided to clean the throttle body too while the battery was unplugged. Cleaned it around the butterfly and not much else. Truck idled at 750 BEFORE cleaning the TB. Now it fluctuates between 820 and 950 rpms. Also tends to stay at a higher rpm after pushing in the clutch and taking it out of gear.
Did a thorough check for vacuum leaks, nothing. After research, I cleaned the IAC and re installed (battery was disconnected then too). No improvement. Unplugged the IAC while running- ZERO change in idle. Installed new IAC, no change whatsoever. Unplugged NEW IAC, no change whatsoever. Is there an issue with the PCM needing time to fully re learn? Am I missing something.
Ford F-150 - 1997-2003 :: Lack Of Power With High Miles - Code P1151
I just bought a 2000 expedition 4.6 EB.. Just like an f150 same principles apply. Here's the issue, it has 284k miles. I realize its probably just tired and worn out but it just doesn't have any torque it seems. If you punch it above 60 it barely creeps up the speedo, my 00 f150 4wd with the same engine about same mileage was way stronger. My only code currently is P1151 dealing with the o2. Plugs are new coils and most all else is probably old. Just wondering if something is wrong and not throwing code or if its just a tired engine in a heavy vehicle?
View 8 RepliesFord F-150 - 1997-2003 :: 1999 - Service Engine Soon Light On Sometimes At High Rpm Or Rough Erratic Idle
My trucks symptoms include a illuminated service engine soon light, sometimes a high rpm idle, and sometimes a rough erratic idle. When a scan was done it indicated the oxygen sensor was defective. The issue is: which specific one (there are multiple oxygen sensors) or how could I check or determine the faulty one for sure. I am trying to economize and replace only the bad one myself if possible. I own a good multimeter, can it determine the bad one? 1999 F-150 4.2 Litre V6 oxygen sensor dillemna....
View 7 RepliesFord F-150 - 1997-2003 :: Got Error Code P1000 - Idle Rough - CEL On?
What that means? The check engine light is NOT on but I looked for a code because my truck is idling rough, and when driving, when the overdrive kicks in, it vibrates really bad. As if a bad U-joint on your drive shaft. The truck has been in a field for about 5 months broke down so any clue? Haynes manual says nothing about P1000.
View 13 RepliesFord F-150 - 1997-2003 :: Rough Idle And Poor Performance - Code P0401
97 4.6.. So it would appear that I have the wild goose chase of codes. The major symptoms are rough idle and very poor performance. I started off by cleaning the egr valve and ports. Then I checked the egr valve itself and watched the valve open and close under a vacuum. I was suspecting the DPFE sensor but I wanted to trying something else first. I was under the Impression that if at idle you apply a vacuum to the egr valve it would cause the engine to "stumble and stall". I did this and there was no change in the way the engine was running. So now I'm lost as to where to go from here.
View 3 RepliesFord F-150 - 1997-2003 :: 1999 5.4L - Code P1506 - Idle Air Control Over Speed Error
I have received the error code P1506 on my 1999 F150 which is I believe an idle air control overspeed error. It seems to run a little rough at idle but not too bad. At the advice of my Haynes repair manual and the advice of a friend I have already replaced the IAC valve and the PCV valve on the engine and cleared the code, only for it to come back again after 50K miles. I am not sure where to go next with the diagnosis/fix.
View 1 RepliesYaris/Scion & Vitz :: 2003 - High Idle With Warm Engine - Getting Code P0511
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.
View 2 RepliesFord - Explorer :: 2006 - Shifting Hard Into Reverse At First Then Stuck In High Gear Or Slipping - OBD2 Codes
Tranny started acting funny recently...shifting hard into reverse at first, then last night it was like it was stuck in high gear or slipping on the way home. Limped it home and took the following codes:
P0743 TORQUE CONVERTER CIRCUIT ELECTRICAL
P0750 SHIFT SOLENOID A MALFUNCTION
P0755 SHIFT SOLENOID B MALFUNCTION
P0760 SHIFT SOLENOID C MALFUNCTION
P0765 SHIFT SOLENOID D MALFUNCTION
P0962 PRESSURE CONTROL SOLENOID A CONTROL CIRCUIT LOW
P0966 PRESSURE CONTROL SOLENOID B CONTROL CIRCUIT LOW
P0970 PRESSURE CONTROL SOLENOID C CONTROL CIRCTUT LOW
Toyota - Tacoma :: OBD2 Gives Same Code Twice - P0420?
My Toyota Tacoma is reporting (via an affordable OBD-II scanner) the same P0420 code: First as a regular code, then as a pending code. What could that mean?
View 6 RepliesPrius (2004-09) :: Getting OBD2 Error Code P1100 - BARO Sensor?
An OBD tester is reporting error code P1100. Checking online I have discovered that it is in reference to a Barometric sensor that is reading out of range. However, I cannot find any identification of the Toyota part number, its location, and whether or not it is a DIY replacement
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