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  1. Jeep CJ Forum
    I have an 82 CJ7 4.2 which has the emissions deleted. The problem that I am having is with my belt routing. One belt goes from crankshaft to alternator, piece of cake.. no problem. Then there is the next belt going from crank>water pump and power steering pump. That belt is loose because there...
  2. Jeep CJ Forum
    Good Morning, Last year i replaced my head gasket cover on my 1984 CJ7 4.2 straight 6. In the process i needed to disconnect some air/vacuum lines to gain access. During the reassembly process i could not find a home for one hose line and now my Jeep is failing its fuel cap pressurization...
  3. TJ Wrangler Technical Forum
    I have been trying to diagnose the the cause of my check engine light and I have not have much luck in a solution. With these codes I had initially replaced all 4 oxygen sensors since I was past 80,000 miles anyways. Codes returned and persisted during smog. The wiring and fusing was tested...
  4. Jeep CJ Forum
    1985 Jeep CJ Loredo 6Cyl manual trans. Passed the emissions portion but failed SMOG due to EVAP leak. It leaks gas with a full tank so I suspect I have broken lines or seal somewhere. Stops leaking at 3/4 tank. I don't have the tools/place to work on cars anymore so I'd rather take it to a...
  5. XJ Cherokee Technical Forum
    I went to the CALIFORNIA SMOG shop to test my jeep in order to register it. I failed the first time with literally no HC or CO but I did have 900ppm NOX and the limit was 550. If there is anyone out there deaing with cutting down their NOX I hope this helps. I ran my jeep stone cold on the dyno...
  6. WK Grand Cherokee & XK Commander Forum
    Hi, I've got an '07 fully stock CRD registered and smogged in California. Would like to delete the DPF by removing it, hollowing out its guts, and re-installing (such that everything looks stock), then running the appropriate GDE tune. Has anyone done this AND successfully passed california...
  7. XJ Cherokee Technical Forum
    Hi All, I bought my better half a 1993 XJ, (I have a 1999, love it!) and have to get it smogged for him. Will putting a new battery in require that I run it 100 miles to clear any codes that newer cars get with battery install? If so, anyone have the sequence, to run out the codes, please? I...
  8. Engines & Drivetrain
    I have an 89 yj that has a 90 cherokee 4.0, I got it swapped everything from cherokee is in there that needs to be and is running great. I bring it to the referee and he looks at my engine and fails me due to the vacuum connector on the intake that is right after the 180 degree turn at the...
  9. XJ Cherokee Technical Forum
    Went to take the '88 Cherokee to get smogged this weekend and if failed the emissions test pretty bad. Trying to see if anyone has some ideas as to what I can fix on my own and try getting it retested. I failed specifically in HC and CO HC: @ 15mph measured 101 (ppm) - the max is 124 = passed @...
  10. YJ Wrangler Technical Forum
    First, let me say I'm new as a poster, but have been a fan of JF for a long time...you guys rock and have helped so much. I gotta problem...I am trying to diagnose super high hydrocarbons in my 93 wrangler 2.5 4cyl. I've been 3 times and HC going up each time...last time at 999. I've done all...
  11. Full Size Jeep Forum
    Just found out thru the Jeep dealer in town that my 87' Grand Wagoneer has or SHOULD have the high altitude emissions package. What is different from the typical emissions that would have come with this vehicle? It was originally from Idaho, then sold to a guy in Washington state who took all...
  12. YJ Wrangler Technical Forum
    Luckily for me, the guy did a quick test to see if I would pass and not charge me. I guess he said my hydrocarbons was around 500 and they needed to be more like 50. He mentioned my cat was probably the cause and that I was running the 'old' style ones. I noticed in the past year or so, the Jeep...
  13. Full Size Jeep Forum
    Is the emissions components and mounts for them as in smog tubes, air pump, exhaust manifold brackets for the smog tubes, etc the same on a 87' as it is for a 90' Grand Wa:confused:ggy?? I have an opportunity to grab all the hardware for my 87' from a 90' that is up in Oregon for a really good...
  14. YJ Wrangler Technical Forum
    So went for a smog here in the People's Republic of California and the first 2 times it failed the visual and passed the emissions. The third time passed visual and failed emissions. They are saying the hydrocarbons are too high scored a 97 max is 90 at 15mph. It passed with flying colors on...
  15. XJ Cherokee Technical Forum
    Hi, I realized I need to get my 98' Cherokee smogged in order to legally sell it as a running vehicle. It has had a check engine light on for the last several months due to a #5 cyl with 50% compression. I wonder now if I messed up the catylitic convertor AND in order to get the light off, it...
  16. YJ Wrangler Technical Forum
    Recently, my YJ failed the NO portion (25mph) of the smog test. My measured reading was 804. The MAX. is 542. The cat. is only 3 years old and I put in a new NGK O2 sensor about 2-1/2 years ago. I took my jeep back to the muffler shop where the cat. was purchased and had them inspect it. Sure...
  17. TJ Wrangler Technical Forum
    Hi all, I have a '06 TJL that I'll be bringing to California in August to register there. A few months ago, I had a friend (who is no longer a friend now for various reasons) work on it for me as I was too busy the time at myself. As part of his repairs, he said he "disabled the california...
  18. Jeep CJ Forum
    Hey guys i finally built up the nerve to take my Jeep in to get emissions done... Background: Bought the jeep (81 CJ7 258 w/ Carter BBD) from a guy who lived in an area that didn't require smog testing, but the jeep did have most of the smog system intact, EGR, etc. however none of it was...
  19. YJ Wrangler Technical Forum
    I have more than 6k invested in my Wrangler, new engine, trans, top, brakes, radiator, hubs, battery, carb, etc. and it still won't pass California smog. I have had the 02 sensor replaced, cat converter was changed out 2 yrs ago, it has a new carb, timing set, new plugs, wires, etc and it comes...
  20. YJ Wrangler Technical Forum
    So my YJ just failed smog due to NOx levels being WAY over the limit. Everything else passed, but both the 15mph and 25mph test were through the roof with NOx. Most people seem to say to change the cat and O2 sensor. Anybody else got any good tips? I also heard that in California (where I am,)...
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