Engine/Transmission (1998.5 - 2002) VP-44 again already???

[TSRAM]

The I. P. is what I'm thinking. Possibly the TPS voltage I know, but I recently adjusted it per Bill K. and pretty sure that's not it. Anyone else got any clues?



Code 1689. Crank in park or neutral. Put in gear. Truck dies immediately. If I raise throttle to around 1200 and put in gear she doesn't die. The VP-44 is about 5 months old and the pump wire has not been molested.

 

[rweis]

When my VP was 0216'ing DC changed the camshaft position sensor prior to really getting to the VP. Just an idea.



Bob Weis

 

[DavidC]

According to the service Manual the camshaft position sensor on a 99 serves no purpose and is used for diagnostic purposes only. The later years use the cam sensor instead of a crank sensor. I highly doubt the crank sensor is causing your problem as you should see symptoms of you tach being erratic. But there could the maybe syndrome.



Dave

 

[klaybus]

Could be the CPS

According to the service Manual the camshaft position sensor on a 99 serves no purpose and is used for diagnostic purposes only. The later years use the cam sensor instead of a crank sensor. I highly doubt the crank sensor is causing your problem as you should see symptoms of you tach being erratic. But there could the maybe syndrome.



Dave

When my CPS went out I didn't have the erratic speedo as mentioned above, but I did throw a code indicating CPS FWIW... .



Clay

 

[Rd.Runnr]

Dies

My did the very same thing several years ago. The fix was a trans. overhaul. Tech said torque convertor failed, but Chrysler replaced lots of trans. parts.

 

[DavidC]

When my CPS went out I didn't have the erratic speedo as mentioned above, but I did throw a code indicating CPS FWIW... .



Clay

Come on clay, I have 10 years on you and I can still spell Tach.



Dave

 

[TSRAM]

I really don't think it'd the trans. . I could be wrong, but I still think it's the VP. If I rev to about 1000-1200 rpm and shift into gear i can let off then it'll idle in gear. If it were the TC i would think it would always shut down in gear at idle.

I do not have a fluctuating tach. The only codes that were showing were 1689 and 602. The 602 is due to the MAD ECM I know. The 1689 makes me think the electronics in the VP are almost ready to take a dump.



I forgot to mention, the comp box makes no difference either on of off.

 

[keimmmo]

When I first read your post a day or two ago, it brought back memories of when I worked for a Chrysler garage back in the late 70s. We had a whole rash of vehicles that would die when you put them in gear. Some would do it only going into forward, others only going into reverse. I didn't post at the time since the experience was so long ago, but it sounds like the problem still exists to some degree. Some of them could be fixed by backflushing the cooler lines to improve fluid flow... if they were plugged, it was always with pieces of clutch material. Others required a new converter and pump.



I AM NOT saying this in your problem!!! But, I HAVE heard of it happening before! I think it IS possible.



Steve Keim

 

[TSRAM]

The problem developed after the truck had ran for about an hour yesterday afternoon in and out of traffic. After letting the truck sit until just now I tried it and the problem is gone for now. I'm tempted to drive it for awhile to let it heat up good again then bring it home to shut it down to se if the trouble re-appears.

 

[TSRAM]

After letting the truck warm up well yesterday I tried shutting down and shifting into gear again. The problem did not come back.

Those of you that have had a bad CPS, how much did the tach jump? I haven't noticed before I got back into the truck yesterday that the tach has a intermittant "flutter" of about 100-150rpm at idle.

 

[DavidC]

The CPS will set the Check engine Light if bad enough. When mine went the Tach went to zero momentarily and turned on the light and then bounced back up. During this the engine felt like it died or lost power severely (always happened at 55+). Personally I do not think your problem is the CPS. Is there the possibility of the TC being locked at idle?. I would think that the TC would be more probable or the Circuit or actuation device (Solenoid stuck etc. )



Dave

 

[keimmmo]

The transmission problem we had years ago was the torque converter locking at idle. It was something about seals on the input shaft that would leak and allow fluid to pass through engaging the lock-up at idle. I don't remember the exact explanation any more. Most would do it only in reverse or only in forward... very few did it in both.



I am not convinced this is a converter problem... but it COULD be... especially if it does it in either forward or reverse and not the other.



Steve Keim

 

[klaybus]

Come on clay, I have 10 years on you and I can still spell Tach.



Dave

Oopsy! I guess I inserted the wrong word there. Yep, I meant to say "tach" where I put speedo. My bad!



Clay

 

[TSRAM]

I am not convinced this is a converter problem... but it COULD be... especially if it does it in either forward or reverse and not the other.



Steve Keim

I agree. And yes, it was shutting down going into forw. or rev. from park or neutral.

Still no codes today after erasing them yesterday.

 

[brianv31]

602 code

TSRAM - I've got the same P0602 fuel calibration error code on my truck currently. I also have Marco's ECM. What do you know about the CaTCHER causing this code? I've got my dealer telling me my ECM needs to be replaced, which I know is b. s. If I clear the code, will it continue to reappear?

 

[Bob Wagner]

Po6o2 is just a nuisance code " ecm operating out of stock parameters" :-laf

 

[dieseldude]

P1689
No Communication Between ECM & Injection Pump Module
this was pulled off of the list I downloaded for 1996 to 2002 generic obdII codes I would have it looked at further to see if maybe it was just a temporary problem you said you were stuck in traffic the heat from the motor and lack of fuel or irratic fluctuation of fuel do to stop and go traffic may have started to cause the electronics on the VP to get hot which is the reason the VP would go bad. the VP has the least amount of fuel to it when you are going along and then let off the accelerator.

 

[dieseldude]

if you need to buy a new vp let me know I can get you a pretty good deal on a hotrod vp. I love mine!!!

 

[Cummins360]

Hi Just readin, where can you get a "hotrod" vp from anyways?

 

[dieseldude]

my buddy is a dealer for industrial injections and he can get good deal I will have him email you if you want!