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ecu
1-20 of 36 Results
  1. TJ Tech Forum
    I decided I was going to order a new PCM based on various bits of info and ruling out certain items. Perhaps, not the best idea I ever had, I decided to open up the existing PCM to determine if I could visually identify any damage. From what I had gathered (on the interweb), many times a bad...
  2. JK Tech Forum
    I've figured out how to program the tire size and pressure settings in JK vehicle ECUs (Electronic Control Units) via OBDII without depending on a commercial programmer. I've done this on a 2018 JK. This is done via the OBDII DLC (Data Link Connector) by the driver's left knee. The basic low...
  3. TJ Tech Forum
    My '05 TJ drops into limp mode by locking into 2nd gear with a obd code of P0755 2-4 gear clutch solenoid circuit. Sometimes after it sits for a while, all will work fine, but after a bit, right back to limp mode. I have cleared the codes, but it re-throws the code within 10 miles, and limps...
  4. YJ Tech Forum
    Anybody replace thier pcm with a mega squirt system? Did you use the factory components?
  5. JK Tech Forum
    Hey guys, just got back from a deployment to a whole host of vehicle issues. My superduty had 2 dead optima red tops. My 2013, currently on jackstands, had 1 dead yellow top. I got the truck taken care of, but now I cant get the jeep to start. The funny thing is, when I got home I found the...
  6. JK Tech Forum
    Need some help here. I just had a stereo installed at a shop (Kenwood DDX9704s with a Maestro rr). Install went smooth and everything works with the exception that it simply will no longer start. We went through the fuses and did find a couple that were blown and replaced them. I know the...
  7. TJ Tech Forum
    So about 4 months ago, my jeep started shifting very hard from first to second. It would only do it the first or second time it shifts and after that it would go away. At the time i had read that in some 2006 tjs, the ecu would cause the transmission to do that. With learning this, I reset my...
  8. TJ Tech Forum
    I got the P1604 code, I want to go get a new PCM. I have a 2005 TJ with a 4.0l 4 speed automatic. This may be a dumb question but are there any differences between a PCM for a manual transmission and an automatic transmission? I've came across some ads that were specific to the transmission and...
  9. TJ Tech Forum
    So I had a buddy put some KC lights on for me. Wired to battery. Lights work, but now the jeep won't start. When you turn the key on there is a clicking sound, and when you turn it all the way it will crank but wont turn over. I have gone through all the fuses in both boxes. The only grounds...
  10. YJ Tech Forum
    Hi all, I'm new here, was hoping I could get some input:) To start, my yj has been running great,but yesterday, suddenly died when i pulled in my driveway. inspected all visible wires, couldnt find any damage. tested wires going to power relay from battery, looking for a short..doing so, i found...
  11. YJ Tech Forum
    Hey All, I am new to the Jeep world. I'm pretty good with cars but hate electrical. I purchased a 91 YJ that had a bad ECU. The previous ECU did not come with the car and I have recently purchased a Reman ECU. I am able to talk to the previous owner of the Jeep and asked him what happened just...
  12. YJ Tech Forum
    SO my buddies and i just did an engine swap on my 95 Rio Rrande; Picked up a used TJ motor for $150 and we're having issues. Now I know that a TJ is OBD2 and a YJ is OBD1 , so essentially re-used all my old sensors. however when i turn the key nothing happens. it goes into the ON position but...
  13. JK Tech Forum
    I got this email yesterday from Superchips and it sounds like their answer to tuning the 2015's is going to be replacing the ECU. Is it just me or does this sound like a warranty nightmare waiting to happen? Here is the email I got: "Dear Valued Customer, We want to hear from you! Based on...
  14. JK General Discussion Forum
    I have noticed on the forum there is a persistent misunderstanding about the CAN bus, especially in context of flickering headlights. Hopefully I can clear up a few misconceptions about these different terms so people understand what is happening - there's not a lot of black magic going on here...
  15. YJ Tech Forum
    Was cruising along just fine when engine just died. Cranks over just fine, but won't fire. Only lights I get on dash are Check Engine and the Shift Light, both on constant. Tried pulling codes (using the 3x ignition on/off), but I get absolutely nothing from that. Both lights still on...
  16. Classifieds Archive
    ECU came out of a running 95 jeep. $ 40 OBO. Will ship in US for $8. :drinks:
  17. General Jeep Discussion
    I was told by my dealer that there is an update for the ECU in my 2013 Rubicon. They were unable to provide me a listing of what the update is changing. Does anyone here know where I might be able to obtain a listing of the ECU changes? Thanks in advance.
  18. YJ Tech Forum
    I am willing to put an PCM/ECU on the bench at our computer store to change capacitors if anyone is interested. Being the weather is getting cold, I imagine they will start acting up again. If your symptoms are to put the key in a turn ON then nothing happens, wait 1-20 minutes and the fuel pump...
  19. Communications and Electronics
    I really neen some advice. I've got a 1998 Jeep Wrangler TJ 4.0. I lost my keys and while taking it in to have a key coded, Jeep's own mechanic blew my computer box and was told that they don't manufacture the computer box or body controllers anymore. My Jeep has turned into a big red...
  20. YJ Tech Forum
    My '93 is having issues with charging. I installed a new alternator, and the battery is new (and tested fine), but it's running still at only 11.63 volts and slowly dropping (while running). I took it to Advanced auto and they told me the voltage regulator is probably bad. I know the...
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