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I was still getting the P0171/P0174 codes.
Pulled the MAF and sprayed down with cleaner. Checked fuel pressure which is holding at 49psi, reset the codes and hope for the best again. Plenty of torque at low speed but at high RPMs (3500 and up) the torque is not there. I've got to check the fuel pressure under load. Found that my old R12 air conditioning service gauge will fit the fuel pressure test port. Noted that the TRAC light is a good precursor that the SES light is about to go on. Evidently, when there are engine management issues, the Traction Control system is shut down. This has been happening about 10 miles before the SES comes on. |
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