Recent content by GoBig06

Update: So I went to another smog tech and he showed me his book which had the right specifications for my XJ. I took a picture of the page and showed the other technician and he let my jeep pass then. I don't have the book name or ISBN that he was using but there is a California smog book out...

1999. It's got the old style head along with the old caps and rotors. I know they switched some stuff up on the late 99s to match the 00 models but it looks like mine has all the old stuff from what I can tell.

Well I recently had to smog check my Cherokee and everything passed! But then the tech failed it for visual inspection... He said it was missing a cat and my current cat needed the O2 sensor going inside of the the cat not behind the cat... But my Cherokee is all stock and replaced with all OEM...

Hey has anyone installed nate's roof rack before? Or similar roof racks? I kind of got an idea how to mount it to my gutters but I'd like to be sure I'm doing it right so it doesn't fly off on the highway. https://imgur.com/a/4vmax this is kind of my under standing how its mounted. Does the...

Started it back up. It was a little rough at first but it's idling fine now around 6-700ish. Error code went away too. I'll drive it around more tonight to see if the error code pops back up.

Alright I'm gonna leave it disconnected for an hour. How long do I let the engine idle so it relearns?

Bosch 13138 and 13399 (upstream and downstream). I think I rebooted the PCM. I disconnected the battery and then reconnected it. Is that enough?

I have a 1999 4.0L xj that I currently replaced the catalytic converter and up/downstream O2 sensors. I was driving on the highway to get my cat hot for the emissions test and I got a P0300 random missfire code. I replaced all the spark plugs and wires then I tested the fuel pressure and got...

Might not be related to the problem but just recently in the past few days its been taking awhile to crank over when the engine is cold but starts up right away when warm. I replaced the battery back in September.

I'm at 150k. It looks like the previous owner put a new cat on but I'll check to see if its a cali cat. I might just throw a new one and get a new O2 sensor and try a no pass no pay smog place.

Yea I replaced the ignition coil in the summer. I have an OBD scanner. Its pretty cheap though. Do more expensive ones have PCM data? I'll do some googling to see how to check for cracks in a manifold. Thanks

So reading up on some of the other threads it looks like HC is from unburned fuel or running too rich. Can running too rich ruin the catalytic converter? Wonder if the burning too rich ruined the cat and lead to super high NO... Should I start investigating on how to fix the HC first?

Yeah I got a scanner already. No codes are coming up.

So I'm required by law in the state of california to get my Cherokee smogged every two years. I went in to get it smogged today and these are the results.... http://imgur.com/a/Jup8o Saddest of sad days. My XJ has been deemed a gross polluter... It looks like my HC and NO are high. What do...

Found the problem!!! Forgot to put the gear back on the motor. Whoops. Got it back installed and it's up and running now. Unfortunately I broke the door lock getting the door apart the last time. Oh well. I can lock it with the key if I need a manual lock. If anyone is having problems with...