97 6.5 changed ip blowing white smoke code 216?

[carolinastreaker]

I have a 97 1500 6.5 turbo and i've changed the injection pump because it stopped running with the old one. Now it runs with the newer pump but its blowing white smoke and has code P0216 -- Injection Timing Control Circuit

What is Injection Timing Control Circuit? And what can i do about it?

[torque454]

You might have to have the timing set by a shop, or the stepper motor might be bad on the newer pump. Those are just a guess tho. Somone else might have a better answer.

[carolinastreaker]

I think the timing is off. I marked the old one and install the new one the same way!

[grancito]

The new pump has to be timed in the ECM by a programer device, eg. tech II or lap top with the soft ware.

[murd450]

take the truck to a shop that has a good rep or one you can trust that has the tech 2 , diagnositck computer ,it is the same one gm uses (it is actualy the factory computer ) or to a gm dealer you can ge the timing close but with out a tach2 it is imposibal to get it perfect , and the timing steper motor is on the pass side of the ip if it wasent installed corectly it will do the same thing i had to replace the one on mine when i putin the new ip i had to take the one off the old ip and install it on the new on , if you do plan on doing this make shure you dont ruin the plastic ball on the botom take youre tim and take the one off the old pump first ,it can be done in the truck but it isent easy:cool:

[carolinastreaker]

i change the stepper motor. but that didnt change the smoking
i moved the ip to the drivers side 3/16" and that helped the smoking a lot but its missing and smoking from 2000rpm and up.
does anybody have a tech 2 scaner near wilmington NC?

[carolinastreaker]

I got a snap-on 2500 and set the timing close to 3.5. It was changing from 3.0-4.0 i guess the stepper motor does that.
The actual inj timing was about 11.0 and desired inj timing about 3.5
I set the TDC offset to -5.4 I read that the snap-on scanner reads different and that -5.4 is really -1.94
It runs ok now but its hard to start cold and still got the code 0216 every time i check it and delete it
I going to check it with a gm Tech II to see if its set right.:eek:

[carolinastreaker]

I checked the timing with a Tech II and the TDC offset was -2.44 so i moved the pump some and got the actual timing to average 3.5 going from 2.8-4.1 and a desired timing of 11.1 and i got the TDC offset the land on -1.94 it had a range from -1.67/-2.20
The Inj. pump sol. closure is from 1.82-1.94ms
And i'm still getting the DTC P0216 WTF??

[turbostorm]

I was just reading on a different site and it had reffered to that code as the "DEATH CODE" so i am thinking that the pump you put in is no good. I had the same code come on in my truck and it has since went off. I think i had better prepare my self for a new pump.

[carolinastreaker]

The stepper motor is not moving so the actual timing stays at 3.5!

[jifaire]

You can get a P0216 with a PMD that is dying, also with bad engine grounds.

If you have replaced the PMD, make sure that the ground wire still goes to the IP, and NOT to the heat sink.

You ARE setting the timing with the engine warm, right (over 170*F). If the engine is cold, the new timing settings will be off. You should be able to get the IP close by braille, then do a ko-ko process to reset the ECM readings. That should make it run allright; setting to -1.94 is nice, but unnecessary, and can make things hard to start/run in cold weather.

[turbostorm]

i was to understand that a bad pmd would not brig a code:confused: :confused:

[jifaire]

The PMD itself does not have a diagnostic code per se... that is, there is no sure way of telling when the PMD is the problem.

However, a failing PMD can cause a number of other issues... on an OBD-1, it may bring on codes 17, 18, 35, 36, 54. Not sure about OBD-II.

NONE of those codes are associated with PMD; all suggest failing IP. However, changing the PMD can make them disappear... permanently.

ergo, a failing PMD can elicit codes that are misleading and point to other things. So can bad grounds. So can poor fuel lubricity or viscosity (ie, bad Biodiesel)

[carolinastreaker]

OK I checked the volts at the connector that plugs in to the
stepper motor with the key on 12v, 4v, 12v, 4v, then with
the engine running all four have about 7volts but both the
stepper motors i have do not move with the key on or
running. The advance linkage will move about 3/8"

[carolinastreaker]

Ok i found the problem the valve in the advance piston stuck due to
varnished fuel or contamination from moisture sitting in the
bottom of the pump.
I had to take the injection pump back off to get to it and the
advance linkage was moving but the valve in the advance piston was
stuck and the spring that keeps the valve pushed out was stuck too!:eek: