2005 with P0344 issue

[CFOX]

I’m going to cut out the section of wire, splice, crimp and heat shrink.

Is it possible that this is the only issue with my Jeep? I re connected everything yesterday (no repair to the wire) landed the battery leads and jeep cranked just fine without any codes.

Is there anyway to verify the fix, other then drive and hope for the best?

 

[JKP]

Were any of the strands cut? I couldn't tell. If it's just the insulation, I would just tape it or coat it.

 

[CFOX]

Were any of the strands cut? I couldn't tell. If it's just the insulation, I would just tape it or coat it.

It doesn’t look like any strands are broken. Tape may be a better option.

 

[CFOX]

Jeep Update:

I spliced, heat shrunk and coated the damaged wire, re-routed the new wire loom away from engine block, replaced spark plugs, tightened crank shaft sensor (found it loose).

Results:

280 miles with no check engine light. I went 680 miles after replacing the ODPA so I'm not claiming success yet but its a start.

 

[muletownlj]

Hey all

Wanted to bump this up again. I have a 05 LJ that has the p0344. It happens after a couple days, randomly. It went away on its own once. Twice I’ve disconnected the battery and it drives 100% fine between. When it’s on I get problems over 2500rpm.
I’ve looked at the wiring, no shorts I can see. I cleaned the connections with connection cleaner. It’s still off but only been a day.

Can y’all suggest a systematic way to approach it as opposed to “replace it all”. Should I install a crown CPS, that plus a new OPDA?, or do the triple OPDA, CPS, and crank sensor all at the same time?

Ultimately if it comes back on i will take to a mechanic to help with the timing after replacement.

 

[Matt14]

@muletownlj

I ended up having to replace the timing chain and OPDA. It cost me 1429.98 for parts and labor. It took the shop 4.6 hours.

It sucked to spend that much, but it fixed the issue and it runs much better now.

 

[Tom Andersen]

Try this first, it is the easiest to replace/repair. Unless you can find a mopar unit, which I found impossible.

https://www.napaonline.com/en/p/ECHCSS1159?keywordInput=css1159

 

[muletownlj]

Try this first, it is the easiest to replace/repair. Unless you can find a mopar unit, which I found impossible.

https://www.napaonline.com/en/p/ECHCSS1159?keywordInput=css1159

Will give this a try. Thanns

 

[muletownlj]

@muletownlj

I ended up having to replace the timing chain and OPDA. It cost me 1429.98 for parts and labor. It took the shop 4.6 hours.

It sucked to spend that much, but it fixed the issue and it runs much better now.

Wow I hope it doesn’t come to this. Going to definitively try cheaper fixes first.

 

[Painfultruth]

Hey all

Wanted to bump this up again. I have a 05 LJ that has the p0344. It happens after a couple days, randomly. It went away on its own once. Twice I’ve disconnected the battery and it drives 100% fine between. When it’s on I get problems over 2500rpm.
I’ve looked at the wiring, no shorts I can see. I cleaned the connections with connection cleaner. It’s still off but only been a day.

Can y’all suggest a systematic way to approach it as opposed to “replace it all”. Should I install a crown CPS, that plus a new OPDA?, or do the triple OPDA, CPS, and crank sensor all at the same time?

Ultimately if it comes back on i will take to a mechanic to help with the timing after replacement.

View attachment 406567

It can be either the crank or cam signal dropping. No good way to know which one without a scope. Make sure both are clean and the bolts are tight. If you don’t have access to a proper diagnostic tool you’ll probably have to shotgun it. Start with the cam sensor as already suggested.

 

[muletownlj]

Ok I’ve got a crown CPS and a NAPA Echlin. Between the two what would y’all pick to install?

Also taking it to have the timing checked and the OPDA changed to a crown unit. It’s never been done on my jeep.

 

[muletownlj]

The OPDA is getting changed to a new crown now. I have a few different sensors as backups (NAPA, crown and one I sourced from a part out car that I think is OEM). Do I need to do a sync every time I change it?

 

[Painfultruth]

The OPDA is getting changed to a new crown now. I have a few different sensors as backups (NAPA, crown and one I sourced from a part out car that I think is OEM). Do I need to do a sync every time I change it?

Sync after OPDA change only.

 

[JamesBuhr]

THIS IS HAPPENING TO ME TOO* 2005 Jeep LJ 4.0. manual
restarting it doesn't fix it, but disconnecting the battery from the terminal and reconnecting it works for a moment.
unable to use cruse, shifting to the wrong gear (downshifting, or out of the proper gear range at the wrong time) throws it into limp mode.

 

[Jay MacLeay]

THIS IS HAPPENING TO ME TOO* 2005 Jeep LJ 4.0. manual
restarting it doesn't fix it, but disconnecting the battery from the terminal and reconnecting it works for a moment.
unable to use cruse, shifting to the wrong gear (downshifting, or out of the proper gear range at the wrong time) throws it into limp mode.

What's worked for me in the past was letting the engine get up to operating temperature and then restart it. CEL will stay on but usually allows you to drive without being in limp mode (where the engine won't rev at about 2,500 rpm). I did place a washer where the sensor bolts into the OPDA (between the sensor and the OPDA). That has helped with the CEL and limp mode. That doesn't happen anymore. This may be unrelated, but I'm experiencing the Jeep stalling or stuttering without a CEL staying on. Usually, the gas gauge will read significantly different than what it was before. When it stalls, I can restart the Jeep and it runs like nothing happened. This happens intermittently and I haven't figured out exactly what triggers it. Usually, it will happen after driving on the freeway, getting off and stopping at a red light, and then accelerating.

 

[JKP]

Your PCM is on the way out.

 

[macleanflood]

@Wranglerfix

 

[Jay MacLeay]

Your PCM is on the way out.

Not saying you're wrong, but can you explain more?

@Wranglerfix

 

[JKP]

It's an 05, the PCM is junk just like an 06.

My 06 would do the same, but it would actually restart itself if you were going fast enough.

Multiple threads on these PCMs out there, our you can just talk to Mark.

 

[Jay MacLeay]

It's an 05, the PCM is junk just like an 06.

My 06 would do the same, but it would actually restart itself if you were going fast enough.

Multiple threads on these PCMs out there, our you can just talk to Mark.

Thanks for the info. Sounds very similar to what I'm experiencing. Mine will also do a sort of "hiccup" if I'm going fast enough. It will never stall at "higher speeds". It only stalls when I'm accelerating from a stop. Sometimes if catch it in time and press the clutch, I can save it from stalling. I'll get in touch with Mark.

Sorry if I'm hijacking this thread.