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TJ47

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Everything posted by TJ47

  1. Ok so update.... i did all the tests on those sensors and found them all to be in range but they were really worn out so i replaced them anyway. Thanks for leading me in that direction tho moses. I ended up doing alot of research on it and stumbled accross a discussion for an issue very similar to the one i WAS having. A guy in this conversation said something simple and i tried it and located my issue immediately! So if you read my original post i mentioned i had my OBD tester coming. Well i got it in. Played with it for a few days and got familiar with it and for the life of me ... couldnt find a thing wrong haha.. go figure. Checked my O2 sensors and they were reading within range ( i checked everything but this sensor is involved with the story ) The simple thing this guy said was "unhook your upstream O2 sensor and see if any thing changes. If the problem goes away then a simple O2 sensor swap" ...... so being a fan of easy tests I decided to do the check (even though all numbers were within parameters) and sure enough... no upstream O2 sensor and NO stalling or rough idle!!!! B-Lined it to the parts store and the rest is history. Thanks again moses to getting me in the mindset of it not having a rich enough mixture. The part i through at this issue... Map sensor, manifold air pressure sensor, coolant temp sensor, multiple new vacuum elbows and fittings. All of these were worn and i do not regret replacing them at all.. except the MAP sensor. But i kept new one and will shelf it for the future.. just in case. Also thoroughly cleaned the throttle body which is something i will be doing once a year from now on anyway... good preventative maintenance never hurt anything! So if you are having this issue do this simple check- unplug it, start it up, if all good... get new O2 sensor lol. Now i remind you... i have no O2 sensor codes AND all the numbers were within range, this O2 sensor showed no signs of being the issue so dont count it out. Super easy test. If this did not fix your issue keep at it! Good luck everyone and thanks.
  2. Hey thanks for this info by the way Moses! I would have never thought of it. Im going to break out my multimeter this week and figure this out! Much appreciated! Hope I find the smoking gun. Will keep you posted.
  3. Ok, so i only get this issue during a coldstart (sitting overnight or an hour ish). So here's what its doing, when i start the rig everything idles good, as soon as I hit the gas it revs up and then starts to stall out, i rev the gas a few more times and it bogs and does a small backfire like sound and then starts idling great again. I can drive it around for hours on end or all day and it runs tip top, no stalling, bogging, nothing, just runs perfect. I can turn it off after it warms up and back on and nothing... runs great. Wait 10min start it up.... runs great. This only happens on a coldstart and after I rev the engine for the first time. No problems any other time. The engine turns over immediately (No cranking) so its not a fuel pump issue, i dont get constant throttle issues so i dont think its the TPS, i dont get black smoke out the tail pipe so i dont think its leaky injectors.... Possible IAC? But it idles fine at start and after wierd hiccup.... Possible MAP sensor? Looking forward to any insight on this. I have a OBD reader on the way to me. Oh and no codes pop for this issue. No engine alarms of any kind so my code reader is useless. Hopefully i can read values with the OBD reader to help narrow it down.
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