error codes

Hello, I own a red TJ and so far I have taken it 4 times to the mechanic because the engine light won’t go off. A couple months ago I had a blinking engine light and I brought it in to the mechanic and he said it was the crankshaft and that’s what was causing the problem. Then the light came...

Ok, so I travel back and forth from Chicago area to So Cal. The Jeep (2005 LJ) is in Chicago land. Typically,I leave the Jeep in the garage and take an Uber to the bus shuttle to O’Hare. Last time! Snowing and no Uber available. Had to drive to station and leave Jeep in freezing parking lot...

Hello everyone, my TJ 97 turns on the CHECK GAUGES light and stops the engine when it is running. It feels like the power or voltage is going down and when it's on in neutral it feels a bit weaker. A few days ago the scanner was done and it showed the error code P1492. As additional information...

So i replaced my o2 sensors with the NGK sensors about 7k miles ago. Didn’t have codes for a while, but just checked it today and I’m pulling codes P0031, p0051, & p0136 (all related to o2 sensors). I’m also pulling codes for p0303 (cylinder 3 misfire) and p0455 (evaporation emission system...

I have a 2006 Jeep LJ with a 4.0 L6 running a Banks Turbo. I am having problems with a P0172 and P0175. From the long lists of common problems that could create the error, Is there a known single characteristic that causes this problem? Where should I start

Hi All I'm not sure what to do about my error code. Thanks @Chris for the list. Apparently the warranty says free replacement of Cat for 8 yrs or 80k miles. Do I get free replacement because I have 52k? As well, what size Bilstein shocks should I get with a 2 inch lift? This will be my first...

Need some sage advice! My 2001 TJ started to have the check engine light come (and stay) on this weekend. It runs fine and no noticeable changes. I found the secret to looking up the OBDII error code with the magic turn-the-key-3x trick and got a P0135, which I just saw is a "1/1 O2 Sensor...

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...

This is a complete list of all the error codes that your Jeep Wrangler TJ can throw. You can get these codes by turning the key on and off 3-4 times within a 5 second time frame or by using an OBDII scanner. P-code suffixes (M) Check Engine Lamp (MIL) will illuminate during engine operation if...