check engine

So as of recent my 05 Wrangler will not start up properly and when it does it idles weird for the first 10 minutes or so until I get it running. Occasionally once I do get it running it will still fluctuate while idling at a stop or whatever. What further confuses me is it also idles so weird...

Okay, I'm super new to this so bear with me... I have a 2003 Jeep Wrangler Sahara. Well, my daughter has. Anyhow, she launched a rod through the block. This was due to some problem that caused the check engine light to come on. Long story short... New motor is in and same problem: The Jeep...

Hey, I replaced my PCM in order to resolve limp mode issues with my TCM and was hoping it would fix my gas gauge issue but it has not. My gas gauge will read normally on start but after a couple minutes driving it will read empty with the gas light. I have already tried replacing the...

Hey guys! A buddy of mine has a OBD II Diagnostic tool, I ran my codes and I got these two: P1281 Thermostat Malfunction P0700 Transmission Malfunction Present I have a 2003 Rubicon, she's got over 153k on the odometer. I have also redone the entire cooling system. I hope you guys have some...

Not sure where to put this thread but my girlfriend recently got an Fj because she couldn't afford a JK. lol, I know that's not the answer. I tried to convince her to get a TJ but she says they're too old. Anyway, the Fj forum is crap so I'm going to ask here. I'm getting 3 codes. A P0420...

Just had my PCM sent off and rebuilt from NAPA's rebuild and return. They either gave me a replacement, or replaced my outershell with a new one. Before i was getting error codes P1604, P0700, and P0613. Now im getting P0700 ,and P1604. Please help! Ive always had the tought shifting, that i...

Well I’ve had the tough shifting since I bought the jeep with 60k, it’s at 107k now. I usually would just “flash” the pcm every time I got gas and this would sooth the issue. Today I checked my codes because I usually have he good ole O2 sensor. But was surprised to see a list of codes: P1604 -...

I have a new code reader (just moved and left my old one behind). My old one was used many times (on my 97 TJ), so my DLC connector was always working. For some reason, it is not powering the new reader. I bought it at O'Reilly's and to test it, they plugged it into their delivery car and it...

Hey all a while back my check engine light would come on in my 1999 4.0l tj, and it read a random misfire and a misfire in cylinders 3 and 4. Took it to my dad's mechanic and they cleaned the injectors, spark plugs and distributor as well as crankshaft sensor had been replaced recently...

P0030 (M)1/1 O2 Sensor Heater Relay CircuitProblem detected in oxygen sensor heater relay circuit. P0036 (M)1/2 O2 Sensor Heater Relay CircuitProblem detected in oxygen sensor heater relay circuit. P0106Barometric Pressure Out of RangeMAP sensor input voltage out of an acceptable range detected...

If your TJ has a check engine light illuminated, below is the procedure for retrieving the diagnostic trouble code(s): Turn the ignition key until the digital odometer displays, then turn it back to off. Repeat three times in succession. (ON/OFF/ON/OFF/ON) Count the number of times the check...