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Flooring the throttle typically turns off the injector pulse, so that means you're limiting fuel by doing so - it's getting too much fuel or not enough air. SO the above assessment is HOPEFULLY correct. Let us know how it goes.

I ran a jumper wire on circuit a209 to PCM C1 #29 and it fired right up and the ECU connected. The PCM was not powering up due to this wire lacking voltage. I'm not sure where the break is, any idea where this wire runs FROM the PCM, looks like through the firewall. I'm going to monitor the...

I do not have B+ 12v at pin 29 C1 harness (18 gauge red) at the PCM. I am going to I am not sure where this runs from, but at every other A209 circuit I have found, I do have 12v. So my issue is my PCM isn't powering up, explains the lack of comm to the OBD2 port and inability to supply ground...

Today, I had my daughter cycle the key on while test light was hook to 12v and probing ASD socket 85. I'm reading when the key is cycled on, there should be ground there for 2-3 seconds (I'd assume to prime the fuel pump and make the immobilizer happy?). I am getting no ground here. I've...

So, my scanner has proper 12v and ground at the OBDII port. Still won't communicate with the PCM. The MIL does not illuminate with the key on. Sentry light on solid. Tracing today, I have found the ASD relay pin 86 has 12v with the key off, if I'm reading correctly, this should only be with...

Thanks Bill - Yes 30 to 87 and it cranks, no start due to no fuel pump at minimum. The ASD relay isn't powering the starter or the fuel pump. I have jumpered it in park and neutral with same results, so I do not believe it's the NSS circuit. I have inspected the wiring at the transmission as...

Yes, can you tell me where the PCM ground is? IF it's the one below it, it is good. Or the pins to backprobe on the PCM for ground too. I am going to work on it in the morning some more again.

CEL does illuminate when holding in the odometer reset... But not without doing so.. :(

The WCM is the wireless control module, the brain of the SKREEM (used to be called SKIM). It has the transmitter ring around the key cylinder. It is responsible for keyless entry, TPMS, and the sentry immobilizer functions. I replaced the actuator pin first, turning the ignition with a...

Also meant to add- my check engine light never illuminates when the key is turned on - it used to until this started

I am leaning on a PCM grounding issue? The one below the PCM and the two to the back of the heads look and test out good. Is there any other related to the PCM?

Thanks Bill, I've had the SKREEM deleted from the programming and have downloaded the manual for tracing the circuits. Problem persists :(

Yes the white/ red wire has 12v at the ignition and the WCM, but not the OBD2 port. I did apply 12v there with a jumper from the battery, but still no comm, no crank. Thanks, keep em coming ;)

I have a 2006 Jeep Liberty Limited that just recently will not crank. Let me give you the long version : I bought this for my daughter and did many things to get it road worthy, no issues other than the TPMS lights were on. My trusted local shop diagnosed it and said the WCM was not receiving...

One last update... New fuel pump assembly.. Code U1411 is gone after clearing it and not returning, the Jeep starts on the first twist of the key, and the fuel gauge appears to be working well now. I have to say, this was the easiest in tank pump I've ever changed, 30 minutes. This $1000...

Although I had tried TWO masters.. A third today seemed to solve the problem. Had two defective master switches. All windows work from all switches now.

I have a similar situation, except I'm pulling code U1411.. Checking fuel pressure, mine wouldn't hold pressure and took 2-3 key cycles to build pressure. Once running my pressure was still 6psi below the minimum threshold. Due to the gas gauge doing as yours does, I determined mine is my pump...

Just wanted to update, I got the ESP, traction control, ABS and Brake lights off and codes gone by replacing both rear speed sensors.. What is ODD is that the bad sensors were both showing ~485 ohm resistance. The new two were both ~520 ohms. I had read spec is 900-1300... Replaced them...

No Plate.. And the tank clears my receiver hitch, or appears to.. Should make quick work of it after I run this 15 gallons out, but with this thing that won't take long :D

I ordered the Carter (mid grade), be here next week - Thanks LibertyTC