Mikill Posted January 28, 2011 Share Posted January 28, 2011 I have a truck that was given to me when another tech was out sick with a check engine light. Codes P0471 and P132B. Followed pinpoint test for P0471 and ended with replacing EBP sensor which wasn't fun tucked away in the back. Cleared codes and retested and system passed. Test drove and let customer have vehicle. When the customer starts vehicle the check engine light pops on. Again codes p0471 and P132B. This time I follow pinpoint test KA per hotline and come to the conclusion that the wastegate actuator has a leaking diaphragm because it does not hold vacuum with the hand pump. Contacted Hotline by phone and they agreed to replace the wastegate and retest. Wait a day for the wastegate and off with the upper intake and wastegate actuator. Adjust the new one and reassemble. Cleared codes and retested system passes. Test drove and again check engine light returns. Again codes P0471 and P132B. Now I'm at a loss here. I know most of us have not had a chance to do to much diagnosis on these new engines but if anyone has ran into a problem with these codes any help would be appreciated. Truck runs fine and has plenty of power but that those two codes keep setting. Quote Link to comment Share on other sites More sharing options...
GregH Posted January 29, 2011 Share Posted January 29, 2011 The P132B can be caused by an early calibration. Have you programmed the truck? Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted January 30, 2011 Share Posted January 30, 2011 There were some problems with the wastegate actuators adjusted extremely wrong at the factory. I don't know if this would cause your trouble...... Quote Link to comment Share on other sites More sharing options...
joshbuys Posted January 30, 2011 Share Posted January 30, 2011 TSB 10-22-09 refers to an exhaust leak at the EGR inlet for a P132B. There was a message with a procedure for wastegate adjustment on vehicles from a certain build date, but I can't seem to find that one. Run your VIN in oasis with the codes you're getting and see what messages pop up, this is always a great resource, especially on these new beasts!! Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted January 30, 2011 Share Posted January 30, 2011 2309 - 6.7L DIESEL MIL DTC P0299 SOME 2011 F-SUPER DUTY TRUCKS EQUIPPED WITH A 6.7L DIESEL ENGINE MAY EXHIBIT A MIL CONCERN WITH DTC P0299. THIS MAY BE DUE TO AN INCORRECTLY ADJUSTED TURBOCHARGER WASTEGATE ACTUATOR. PRIOR TO PERFORMING NORMAL DIAGNOSTICS, CHECK THE TURBOCHARGER WASTEGATE ADJUSTMENT. REFER TO WORKSHOP MANUAL, SECTION 303-04D. NOTE: DO NOT REMOVE THE WASTEGATE ACTUATOR RETENTION CLIP DURING THE SERVICE PROCEDURE AS IT CAN EASILY FALL AND BECOME LOST. IF ACTUATOR ADJUSTMENT IS CORRECT, PROCEED WITH NORMAL DIAGNOSTICS. Quote Link to comment Share on other sites More sharing options...
Mikill Posted January 30, 2011 Author Share Posted January 30, 2011 I forgot to mention that I did perform those TSBs and pcm is at latest calibration. There was no exhaust leaks or damage. The wastegate actuator has been replaced and the adjusted according to the specs which are 8.3inhg-10 inhg for wastegate first movement. I adjusted it and it starts moving at 8.5 inhg. Contacted the hotline again and step KA16 was performed while on the phone and the MAP and EBP do not change when commanding the VGT open and closed. Hotline told me to test wiring and if that passes to replace turbocharger assembly. Tested the circuit and everything passes. Hopefully the turbo fixes this concern. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted January 30, 2011 Share Posted January 30, 2011 Does the wastegate actually move when commanded in data logger? Does it move enough? My first run in with one of the the rubber vacuum connector on the wastegate vacuum control solenoid had a weird split in it. Performing the pinpoint tests everything passed using my vacuum pump and gauge because they had their own hoses. I couldn't even hear a vacuum leak but it was there. Different DTC than you though. Thought I would mention it just in case. Quote Link to comment Share on other sites More sharing options...
mchan68 Posted January 30, 2011 Share Posted January 30, 2011 Contacted the hotline again and step KA16 was performed while on the phone and the MAP and EBP do not change when commanding the VGT open and closed. Hotline told me to test wiring and if that passes to replace turbocharger assembly. Tested the circuit and everything passes. Hopefully the turbo fixes this concern.I had one such truck that came in setting P132b like yours awhile back. Ran pinpoint test KA the way you did, saw that numbers were less than specs. Ran the same pinpoint test on a stock unit that passed. After farting around with the wastegate like you did and determining nothing was wrong, I reran that test and it passed!!! Even after documenting and reporting this to Hotline, they still insisted that this truck needed the turbo replaced, even though there were no issues with the truck afterwards. The decision of my SM was to simply release the vehicle back to the customer to drive it, and to return if the Check Engine light comes back on. The truck hasn't been back since. Quote Link to comment Share on other sites More sharing options...
Mikill Posted January 31, 2011 Author Share Posted January 31, 2011 Keith- The wastegate does move when commanded. I checked all the vacuum lines and connectors that I could see and found no damage or leaks. mchan- After the wastegate replacement and adjustment the check engine light came back on. I rechecked the wastegate and it still was in spec at 8.5 inhg. That's when I contacted hotline they came to the conclusion of replacing the turbo. Quote Link to comment Share on other sites More sharing options...
Mikill Posted February 2, 2011 Author Share Posted February 2, 2011 We have been in the process of waiting on gaskets for the turbo but the customer has said the check engine light has not come on and has been driving it since Friday with no problems. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.