mission-inc
NAXJA Forum User
- Location
- OREGON
So last week I did a good amount of work on the heep (borla header, poly motormounts, new cap, new rotor, new plugs, new vac lines, new CCV lines, oil/filter change, and a k&n "cold air"). Got the truck running fine with all these new additions (the best it's been running in a while in fact). Went on a short trail (about 4.5 miles total) and the truck performed amazingly and eventually drove it home alright.
The next day I started it up and it idled fine. As soon as I stepped on the gas the engine began to run really rough and eventually died. It then wouldn't start after that. I checked all the vacuum lines and electrical connections and everything was ok. I wiggled the injectors and tried starting it again, and it did. This time it idled fine for a minute and then ran rough and died (no throttle applied). :moon:
I just tested the TPS today following both a haynes and chilton manual. If I performed the test correctly, then according to those books the TPS is bad. I got a reading of around 4.8 volts which was constant from closed throttle to wide open (and everything in between). I'll go out and double check it tonight. So say the TPS is bad...would that cause the no start? If it is bad, is it a dealership part or could I get away with one from pick n pull..? :wierd:
Also..I remeber partially while I was swapping out the old header and putting in the borla, I briefly cleaned the o2 sensor with carb cleaner. Would this destroy it? If so, would it cause the problems i'm describing? :hang:
I'm a pretty competent home mechanic, but this has throughly stumped me. I'm searching this site and my haynes/chilton manuals like a mad man trying to get my damn truck running!! Any help is, as always, greatly appreciated :thumbup:
The next day I started it up and it idled fine. As soon as I stepped on the gas the engine began to run really rough and eventually died. It then wouldn't start after that. I checked all the vacuum lines and electrical connections and everything was ok. I wiggled the injectors and tried starting it again, and it did. This time it idled fine for a minute and then ran rough and died (no throttle applied). :moon:
I just tested the TPS today following both a haynes and chilton manual. If I performed the test correctly, then according to those books the TPS is bad. I got a reading of around 4.8 volts which was constant from closed throttle to wide open (and everything in between). I'll go out and double check it tonight. So say the TPS is bad...would that cause the no start? If it is bad, is it a dealership part or could I get away with one from pick n pull..? :wierd:
Also..I remeber partially while I was swapping out the old header and putting in the borla, I briefly cleaned the o2 sensor with carb cleaner. Would this destroy it? If so, would it cause the problems i'm describing? :hang:
I'm a pretty competent home mechanic, but this has throughly stumped me. I'm searching this site and my haynes/chilton manuals like a mad man trying to get my damn truck running!! Any help is, as always, greatly appreciated :thumbup: