Smalls
Addicted CEG'er
holy crap. i cant believe no one told this guy to check his intake gaskets... spray carb cleaner or a similar product around the gaskets and listen for any surges or changes in rpm
Interesting. Well, I've got carb cleaner handy, so I'll definitely give this a shot tomorrow.
from my understanding it most important in how the atx will shift.
I def agree with that. My car was doing the same thing until I cleaned my IAC. Now it won't hold an idle to save it's life. i'll be replacing the IAC today.Update:
ime I arrived at work. The better news is, I think I found my problem.
Let me know if my logic is sound:
- Old, dirty IAC = holds an idle, but causes periodic runaways
- Old, clean IAC = won't hold an idle, but doesn't cause runaways (yet)
- New IAC = hopefully solves both problems
Anyone have additional ideas?
You might check the throttle body to make sure it is closing properly, but I doesn't sound like thats the issue. I've got nothing else to throw out there at the moment.
I didn't read through the whole thread but it does sound like the TPS. I had the exact same problem (it was almost scary) but it turned out to be a short in the wiring for the tps.
Slow down buddy, mine would rev up and then something would happen and then the rpms would go to normal. I read enough to hear his symtoms, so before you haul off Harrry, why don't you give the advice a chance. I had the exact same symtoms the OP is having.
Have you swapped TPS's with one that works or a new one just to test if you have the same issue?
1. when the engine is in runaway mode, the ATX hesitates to commit to the final shift.
2. It's like it wants to stay at 4k RPM. Only when I let my foot off the accelerator completely, does it finally shift.
3. Note that this is only true for the final gear. All other gears shift properly at expected RPMs under all conditions.!