scott schmerge
Full Access Member
Alright folks! So here’s a stumper. Had the passenger side valve cover replaced and picked up the truck last week. It was running great. Then proceeded to get a p2118-19 code. Restricted performance and the works. Dirty throttle body.
Assumed it was due to running lean for about 100 miles before I could get it in for service. Cleaned throttle body and code disappears. Then two days later, get a map sensor code (no throttle body code). Clear that, clean tb again, assuming I didn’t do a sufficient job the first time. Notice some oil buildup on the inside of the throttle body. Clean it again. Runs well.
A day later same thing...open up, oil again on inside of the tb. clean and run it- all runs smoothly.
I’ve got an email out to my independent, but at this point, I’m suspecting the repair was not done correctly.
Anyone on here know what could be the cause? I know for emissions, the oil vapors get fed back into the intake- just a bit confused as to what could be a possible cause?
If anyone is curious...after a frustrating couple of days, I solved the issue. The initial dirty tb must have tricked the computer values and the frequent restricted performance messages were sporadic and unpredictable. I did multiple “clear adaptations” to no avail. Then after cleaning the throttle body for the 5th time...I started wondering if the computer had not reset. Went into gap tool and hard reset the vehicle...heard the throttle body flap move with the engine off and bam, problem solved. I now have a very clean tb and a happy rig.