Recent content by garagecouple

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    Cranks but no start (codes P0688 and P0522)

    When checking via the obd2 port while the engine is running
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    Cranks but no start (codes P0688 and P0522)

    So to update. Jeep runs and drives. All 4 of the oxygen sensor codes come on immediately and the jeep idles and drives fine. All 4 of them read voltage values above 1.1 all the time. All 4 of the connectors have a continuous ground to G105 tested with a multimeter. At this point I think its the...
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    Cranks but no start (codes P0688 and P0522)

    I have an UPDATE! We did it! Fires up, but now is throwing the 4 02 sensor codes (p0031, p0037, p0051, p0057). I got it to run and I could not have done it without your help and the help of everyone else who has chimed in! Hopefully this thread helps someone struggling with this issue down the...
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    Cranks but no start (codes P0688 and P0522)

    Thank you for your reply! I will verify myself the relay function and get back to you. Wondering if the 4 o2 sensor codes it threw when I jumped the relay indicate the pcm is dead and that I need a new pcm.
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    How do I access the last two bolts on the oil pan between the pan and rear main seal?

    I didn't remove my starter but had to remove the downpipe.
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    Cranks but no start (codes P0688 and P0522)

    Not to complicate things further. Want your input on this. Let's assume the ASD relay DOES NOT click during the initial 2 second start up, what is your thought process there? I would think somewhere from the PCM to the ASD ground the wire is interrupted/damaged/shorting Hopefully all of this...
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    Rear Main Seal Replacement (4.0)

    Amazing. Followed this and made a video on it. My rig was leaking A TON, as in the full contents of the engine every 500 miles, now, its dropping 1 drop every now and then. One of the larger bolts holding in my oil pan was stripped so I feel like once I replace that, it will stop for good...
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    Cranks but no start (codes P0688 and P0522)

    Here is a link to the tsb https://static.nhtsa.gov/odi/tsbs/2013/SB-10064540-0335.pdf (step 11-15)
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    Cranks but no start (codes P0688 and P0522)

    Thanks for the correction. Yes. The tsb called to connect a13 and a15 as seen in the above diagram. Both a13 and a15 have +12v all the time regardless of key position. Its not energized because there is no steady ground. The issue im having is the pcm isn't grounding the relay.
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    Cranks but no start (codes P0688 and P0522)

    Triple post but just writing my thoughts here as I wait for the products. So we are all on the same page: A11 - pin 85 - pcm ground A13 - pin 86 - 12v switched power A14 - pin 87 - 12v power out to fuel pump A15 - pin 30 - constant 12v. After the tsb, both pin 30 and pin 86 were connected...
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    Cranks but no start (codes P0688 and P0522)

    Appreciate that. I think I will go ahead and install the 4 new sensors and see what happens. If still nothing, I will undo the TSB and see if that fixes my issue. I would imagine that if something was wrong with the ASD ground wire, it would blow the ASD fuse, but testing the fuse with my...
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    Cranks but no start (codes P0688 and P0522)

    Thank you for the information! Read the reference material (even before you posted it), and appreciate your insight! So, how would you go about testing the wiring with a multi-meter? Should I undo the tsb and put it back to the original configuration? I don't understand how one moment it drives...
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    Cranks but no start (codes P0688 and P0522)

    Thanks for that info! I had my wife put her finger on the asd relay and she says it clicks twice when i turn the ignition. I don't think it is the relay itself, i tested 3 different relays and the problem persists. Regarding the circuit, i mean it was all cut apart and re soldered together...
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    Cranks but no start (codes P0688 and P0522)

    Thank you for all of your help! Im sorry, I don't quite know what a relay closing means. When I crank the key, the relay clicks, then the fuel pump wines, and then the relay clicks a second time. I have tested the horn relay in this slot and also the same thing occurs. The PCM isn't providing...
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    Cranks but no start (codes P0688 and P0522)

    I swapped the ASD with two other known working relays and still the same issue. After jumping pin 30 and 87 on the ASD, it fired right up! I did get 4 new codes, all for the oxygen sensors. I'm assuming those popped up because I jumped the asd. I checked the ASD wires as well as the tsb work...