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  1. jpjeep26uk

    Intake Air Temp Sensor issue

    Yeah, that's seems to be the answer, polarity doesn't matter etc. I'll swap em round and see if it starts up. I'm this close to selling it. 4 months now and so much trouble. Plus I can't drive it for a year so it's just going to sit there anyway. Prefer to get it running so I can sell it as...
  2. jpjeep26uk

    Intake Air Temp Sensor issue

    Yeah, doing that now, just in case. Thanks.
  3. jpjeep26uk

    Intake Air Temp Sensor issue

    Hi all, does it matter which way I wire up an IAT? Put a new one in today and the darned jeep still won't power up. Could it be I wired the IAT polarity the wrong way around? It didn't come with the same connector on my jeep so I had to use the little kit it came with. Thanks
  4. jpjeep26uk

    YJ Heating System Explained

    Late in on this one. I had the same issue with questionable floor flow and only after folks helped me in here figure out a relates cable connection, did I find out that there is supposed to be a plastic flow box screwed to the bottom of the air box which directs air to the driver footwell and...
  5. jpjeep26uk

    Intake Air Temp Sensor issue

    Greetings global trouble shooters! Here's a really dumb question but I'm allowed to ask as I have a touch of residual but persistent brain damage so humour me folks! Will my Jeep fail to start if I totally unplug the Intake Air Sensor ? I only ask because whilst cleaning up my electrics on the...
  6. jpjeep26uk

    What is the best way to adjust the fuel pressure regulator on a 2.5 TBI system?

    Been a while! and spotted this just browsing my old post looking for IAT help. In this instance it was a loose and very old O2 sensor. But regarding bolts, later in 2023 I had a backfire in Autumn and after crazy time spent rooting around it turned out to be 1. a missing rear bolt and 2. A PO...
  7. jpjeep26uk

    Sway bar link query

    Hi Diesel, ive thrown the towel in and I'm having it towed to a mechanic to get it back to good health and swap out the links! . I'm just not fit enough at the moment haha. Shame as I've done everything else on it but hey, safety comes first. Doing better day by day and seeing specialists so...
  8. jpjeep26uk

    Sway bar link query

    Hi all. I need to swap out my sway bar links and my word, how hard is it to get that top bolt out!! I've got the metal pin out, but that nut is just not budging. Anyone done this and any tips? I've hit it with a 4lb lump hammer, squirt a tonne of penetrating fluid all over it, tried loosing...
  9. jpjeep26uk

    Manifold Bolt Size

    Woah! Thanks everyone, some great info. Never knew about the hardness part. Ok I'll import some from your side of the pond and see if they stop my crazy misfire! Cheers all
  10. jpjeep26uk

    Manifold Bolt Size

    Hi all. I was tightening my intake manifold bolt and one at the front just spun in it's axis. Zero tightening up. Pulled it out and it was rusty as heck. Cleaned it up and it's cross threaded on the most important bit. It says m8.8 on the head but I can't find any 8.8mm replacements. Any...
  11. jpjeep26uk

    Black Smoke!

    Quick update, testing the MAP sensor and resetting the distributor to TDC again I spotted tiny air bubbles or oil bubbles oozing out of the front right hand side of the intake where it joins yo the engine body. I figured maybe a bolt was loose and it turns out the front bolt on the side of the...
  12. jpjeep26uk

    87 YJ has black smoke in the exhaust

    Hi, did you fix the black smoke issue in the end? I've got exactly the same issue after sitting for three months here in the UK
  13. jpjeep26uk

    Black Smoke!

    Yeah, single point injector. I'm stumped as I have replaced lots of parts and cleaned up a lot of them in my original quest just to get it running again. Rodents, good point! Air intake and box seem ok, although I did notice a bit of an improvement when I took the lid off the box and took the...
  14. jpjeep26uk

    Black Smoke!

    Hi all After sitting silent for three months whilst I tried to fix an electrical issue i finally got the old girl to start and stay running. Yesterday she dismally failed her MOT (UK) on emissions. Black smoke and running as rough as heck. I knew she would fail because we took the long route to...
  15. jpjeep26uk

    Idle controller for 2.5 4-cylinder

    Hi all, I'm prepping my now (finally) working Jeep for it's MOT and just need to do what I can to make sure the emissions are ok. It's running grey to dark grey moke at the moment. Probly cos it's been sitting for three months and not been driven at all. In my quest to rule out everything that...
  16. jpjeep26uk

    Good grief Charlie Brown!

    Thanks Trex, haha Eric Idle....comedy gold.....thanks a lot, on the mend each day.
  17. jpjeep26uk

    Good grief Charlie Brown!

    Hi all, just wanted to say a huge thanks to everyone who's chipped in since Jan to offer advice on my non starting Jeep. It started!! I'm not certain of the fix, but I bought a refurbed ECU and a brand new injector from the US. Then I fixed the TDC timing and adjusted the distributor and she...
  18. jpjeep26uk

    Good grief Charlie Brown!

    It's a late 1988, single point injector, 4cyl manual.
  19. jpjeep26uk

    Good grief Charlie Brown!

    Hi T rex, I'll keep the faith haha, not in the best health at the moment so my patience is a little worn out. Yeah, perfect match for the ECU. Yes that's right, The fuel is sitting under the butterfly of the throttle body- the brass looking flap directly under the injector. My fiancée noticed...
  20. jpjeep26uk

    Good grief Charlie Brown!

    Thanks man, it's a bind. I had seizures out of nowhere. Knocked myself out three times, then smacked my head on my low garage door. Ended up in Neuro ward for 11 days with serious concussion. Had to surrender my license for 4 months until I'm well again. Figured I may as well prep the Jeep to...