Ramsky65 here, thought I'd follow-up on the PO132 code mystery. I changed-out the MAP sensor cleared codes and went for a ride, all is well so far. In retrospect I might have changed the MAP first because it can throw out some weird codes but, I do haul a trailer which uses a lot more gas and could have affecred the EGR and O2 sensor. One observation is that the replacement MAP sensor is a lot beefier than the OEM one. Thanks for your welcome and suggestion they got me on the right path.
Hey there man, I did see your thread and as GTyankee pointed out, there are several things that can cause a particular code and the code doesn't necessarily tell you exactly the problem but it does help narrow down the trouble shooting a bit. I think you're on the right track with having replaced the EGR and the O2 sensor and, as you mentioned, checking for any bad connections to the sensor or wiring issues. If that doesn't turn up any problems, I'd consider doing a fuel pressure test, see what pressure you're getting at the rail and if you're holding that pressure. Is this the only code you're getting? Seems to me, and I'm no expert mind you, if you were getting a vacuum leak, there would be other codes present such as P0300 or a misfire somewhere. Be sure to post back and let us know what you find tomorrow!
First of thanks for the welcome, I am slowly getting this site figured. I don't know if you seen my Help thread, I can't figure this PO132 code after replacing EGR and Front O2 Sensor. I am not giving up, tomorrow I look for shorts and will do propane test to check for vaccum leaks