cheezoto Posted December 3, 2009 Report Share Posted December 3, 2009 I just bought a cheap 98 GMC Suburban 2500 4x4 with the 6.5L Turbo Diesel to use as a tow vehicle. The truck runs great but has a SES light P0216 (Injection Timing Control Circuit) It starts easily, does not smoke, runs strong and the clatter is a bit loud on cold start so I am guessing that the timing is a bit advanced. I logged some data on my scanner and it seems to tell the same story At fully warm steady state idle condition Actual IP timing is 23.1 Desired IP timing is 10.3 TDC offset is 5764.7 ??? (should be inbetween -2.5 & 2.5) http://www.columbusracing.com/forums/picture.php?albumid=448&pictureid=3384 I am guessing that the pump is clocked too advanced, is mounted one tooth off, or the stepper motor took a dump. I plan to loosen the Injection pump up this weekend and rotate it slightly to see if i can get Actual and Desired IP timing to match. My Diesel knowledge is pretty limited so if that does not work I would prefer to just take it somewhere and get it fixed. Any suggestions for a good diesel shop in Columbus with 6.5L TD experience? Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted December 3, 2009 Report Share Posted December 3, 2009 injection pumps on those are know to go out.... let me do some diggin real quick Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted December 3, 2009 Report Share Posted December 3, 2009 follow this flow chart... http://ww2.justanswer.com/uploads/Bluegorilla/2009-07-29_130539_6.5_p0216.pdf im thinking the stepper motor, crank sensor so on...with the values out that far... has the code always been there or just out of the blue? Quote Link to comment Share on other sites More sharing options...
cheezoto Posted December 3, 2009 Author Report Share Posted December 3, 2009 follow this flow chart... http://ww2.justanswer.com/uploads/Bluegorilla/2009-07-29_130539_6.5_p0216.pdf im thinking the stepper motor, crank sensor so on...with the values out that far... has the code always been there or just out of the blue? I just bought the truck and the previous owner just had replaced the Injection pump, PMD, & injectors. Quote Link to comment Share on other sites More sharing options...
cheezoto Posted December 3, 2009 Author Report Share Posted December 3, 2009 (edited) follow this flow chart... http://ww2.justanswer.com/uploads/Bluegorilla/2009-07-29_130539_6.5_p0216.pdf im thinking the stepper motor, crank sensor so on...with the values out that far... has the code always been there or just out of the blue? Thanks for that PDF, Ill read thru that today and mess around with it when I get home tonight. Also do you have the document for "Fuel Pump Injection Timing Adjustment" ? Edited December 3, 2009 by cheezoto updated Quote Link to comment Share on other sites More sharing options...
SPL_Josh Posted December 4, 2009 Report Share Posted December 4, 2009 Unlimited diesel in bremen Enterprise Engine Repair the 6.5s are notorious for blowing head gaskets Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted December 4, 2009 Report Share Posted December 4, 2009 I just bought the truck and the previous owner just had replaced the Injection pump, PMD, & injectors. more then likely out of time then... should be able to pull the cover and check it... Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted December 4, 2009 Report Share Posted December 4, 2009 Thanks for that PDF, Ill read thru that today and mess around with it when I get home tonight. Also do you have the document for "Fuel Pump Injection Timing Adjustment" ? i found that on google of a diesel site. i can get what ever else you need off alldata tho... Quote Link to comment Share on other sites More sharing options...
TurboTank Posted December 4, 2009 Report Share Posted December 4, 2009 your gonna want to keep these guys in ur phone book http://www.ssdieselsupply.com/ Quote Link to comment Share on other sites More sharing options...
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