I had an earlrer thread about my truck acting up. finnaly took it to get the codes read. po 216 is the code.Censored Truck will no longer start. Please advise
Justin:help:

cleared codes and it started. Still has original problem. Smoke and runs bad until it warms up. then its o.k. other than low power

P0216 - Fuel Injection Timing Control Circuit

Don't know for sure, but if I had to guess I would say that your Fuel Solenoid is just about dead? Maybe a healthy dose of Marvel Mystery Oil and Power Service would help limp it along? The fuel "additives" helped me rid myself of the P01217 code (Fuel sol closure too long) and now I have a P01216 (fuel solenoid closure too short), which I believe is related to my weak PMD.

Hope this helped....?:confused:

That code is for injection timing control circuit. Sounds like a pump problem but I'm not real familar with the DS-4 pumps other than the POS/FSD/PMD.

So you think it is a fault inside the pump not the pmd? both were replaced at 217K
I assumed the pmd was setting timing incorrectly
Justin

now I have a P01216 (fuel solenoid closure too short)

they warrantied my pump with a 1216. not sure if it is pmd related or pump internals. but it'd stall out for no reason, and occasionally give 3 surges and puke out black smoke. interesting to see when we were not in the truck.

they warrantied my pump with a 1216. not sure if it is pmd related or pump internals. but it'd stall out for no reason, and occasionally give 3 surges and puke out black smoke. interesting to see when we were not in the truck.

At 201K miles, they would be hesitant to warranty my injection pump):h

I guess i'm still confused gang. Should I replace pump or pmd? Or drive it with fuel treatment?
Thanks
Justin

Try the fuel treatment and see if that helps at least for a little while. I'm not sure on the pump but if it is the fuel solenoid then thats a pump change if I remember correctly. I'm sure one of the pump guys will be along shortly to correctly direct us on the pump change

I replaced pump myself at 217K. not knowing any better i never had the timing checked. The canner is showing 9 degrees. can this be part of the problem? Bowtie I will take your advise as well as Goldsberg's. Just wann know how to set timing before it leaves the shop if I need to. Thanks again gang.
Justin

timing needs to be set using a scanner and I'm not up on much else about setting timing as I haven't done it yet.

I replaced pump myself at 217K. not knowing any better i never had the timing checked. The canner is showing 9 degrees. can this be part of the problem? Bowtie I will take your advise as well as Goldsberg's. Just wann know how to set timing before it leaves the shop if I need to. Thanks again gang.
Justin

Under what conditions is your scanner showing 9 degrees? If your timing is too far out it will throw a specific code (TDC offset code), so I don't think that your timing is too far out..?

Do you have a Tech II or what type? If you can command the "Time Set" function with your scanner, this will place the timing stepper motor in the Full Retarded position. With timing set to factory specs, the Actual Timing value should be close to 3.5 degrees.

I can't really help you with the Actual or Desired Timing values on your OBDI truck (warmed and at idle). I THINK that 8 degrees in this condition is correct without any functions commanded (ie just sitting and watching while engine idles). My 98 (OBDII) truck runs about 11.5 degrees timing at idle when fully warmed, but I am pretty sure that is a known difference between OBD I and OBD II calibrations...

His 96 is a OBDII not OBDI, OBDI was 95 and older OBDII is 96 and up. That is when the new mandates came in for universal coding and scanability. So his 96 should be able to be commanded to do a TDC learn with the pedal method and watching a scan tool, correct.

His 96 is a OBDII not OBDI, OBDI was 95 and older OBDII is 96 and up. That is when the new mandates came in for universal coding and scanability. So his 96 should be able to be commanded to do a TDC learn with the pedal method and watching a scan tool, correct.

OOPS! Your right!

Given this, the scan tool (Tech II and others) can command a Time Set function or TDC offset function on your truck. The Time Set command (via a scan tool) sets the timing stepper motor back to full retard position so that a person can see the base timing of the IP. The TDC offset command can be accessed by either a scan tool or the accel pedal sequence. The details of the accel pedal sequence for TDC offset can be found here: http://dieselplace.com/forum/showthread.php?t=2599

Update! Went to pick up truck. He changed leaking fuel filter that I had just put on and cleared the code. Truck ran good but not perfect (no more white smoke stumbling etc) I did the relearn (hold pedal down 45 secs etc) the truck didnt run any different. went to pull out of his gate and the truck died. I restarted it and it "loped" like a race car surging smoking white etc. ses light came on again I left it with him. I dont know the new code yet. Any more ideas?
I want to thank everyone for the help to date.
Justin

You have a bad stepper motor on the pump. Opposite side of the PMD. The stepper controls the advance movement inside the pump.

It is field replaceable without removing the pump. See if you can't find someone who has a core pump you can get one off of.

Thanks I'll try it. Bryan diesel may have one. One more question can the pmd cause this? Im so confused. Where the hell is QM he usually works on my truck. Love that guy.
Thanks again gang Off to buy a stepper motor
Justin

Where the hell is QM

Good question!

Make sure there is no air in system after replacing filter, sometimes it
takes quite awhile before it is cleared, also if you don't get all the air out of thre filter, it will pass into the pump, thus " looping, than dies,,

May need to bleed at injectors,,,,,

Next don't get excited, one thing at a time. Just try to get it running than work on next problem...

Replaced stepper motor. It made no change. Drove truck home from the shop last night. It runs fine while driving. Idle speed is still when it run poorly. It doesnt die anymore just misses and almost will die then it catches and speeds up and jumps foreward. anything abouve about 1K rpm truck does fine. Stiil getting code of po 216 after clearing it several times. Any more ideas? Thanks Gang,
Justin
qwestqaz Thanks for telling me to calm down. I should do that more often prob will live longer. :)

I'll bet the new code is a P1214 - TDC Offset. that's my first guess, second would be a P0251 - Pump Rotor Cam Problem.

Either way, you need to get your TDC Offset right.

See what your ACT Timing is when the engine is idling and above 170F, which is where it should start to try and relearn again. If its <3.5, you need to advance the pump. If its way higher, then you need to retard the pump.

Thanks, I will check it and let y'all know.

Snap on scanner says it is in the "range" at 9.0. Is this too high? code is still po216. Dont know wtf else to do. Bryan diesel says it sound like it is sucking air. we opened fuel bleed valve in the front of engine while running and found fuel comming out hose with no bubbles. Is there a such thing as a "weak" lift pump. I have been thinking of getting rid of the truck but cant find a replacement that is as comfortable as this truck. And I hate to put a $5,000 motor in a $6,000 truck.

Snap on scanner says it is in the "range" at 9.0. Is this too high? code is still po216. Dont know wtf else to do. Bryan diesel says it sound like it is sucking air. we opened fuel bleed valve in the front of engine while running and found fuel comming out hose with no bubbles. Is there a such thing as a "weak" lift pump. I have been thinking of getting rid of the truck but cant find a replacement that is as comfortable as this truck. And I hate to put a $5,000 motor in a $6,000 truck.

I would guess that you are not going to have to replace the engine to fix this problem:) . Although it is hard to diagnose without being there, I am sure that all of us are willing to continue (to try). It sounds as though something relatively simple has malfunctioned. I know that itself isn't very helpful but it is meant to be encouraging...

It appears you have all the air out of the system and are back to original problem,
I Note High Miles,,, May want to check timing chain and engine cam / pump timing.

I believe code is result of crank and ip pump being out of correctable range for stepper motor, ( Help here folks ) or IP is way out of mechinacl time.

at idle, 9.0 inj timing is normal.... what is TDCO, probably way out of spec.
should be around -1.0 or less, after -2.5, PCM can not calibrate timing, ( again , help please ).

READ as much of the previous forum's , may find the right clue...



Diagnoss for air in fuel inlet is to install a clear hose section at IP pump and check for bubbles when eng is running,

With this many miles, cost of a mechanic will eat up cost of new engine very quickly.. need to do yourself,

Bryan diesel says it sound like it is sucking air. we opened fuel bleed valve in the front of engine while running and found fuel comming out hose with no bubbles.
I've met the guys out at Bryan diesel, that is the smallest fuel shop I've ever been in. They seemed like alright guys but I think they're way off the mark about sucking air. You can't check for air bubbles at the drain tee anyway, you have to check on top of the filter or at the pump supply line.

I need to know what your DES and ACT timing are.

I've been missing all the fun. Air in the line would make it sputter and die. A fuel restriction will make the idle lope and stall and give white smoke when you try to accelerate. I drove through caldwell today, I would have stopped If I had known.

I'll keep trying gang. The rough idling is not happining as frequently. Just very hard cold starts. I will research Timing posts and see where I'm screwing up. Thanks again for your continued help. I may try to pm qm. and let him have a look.
Justin

Truck fixed Ip needed to be moved a little bit. Thanks again gang
Justin