Gregory
15+ Year Contributor
- 296
- 1
- Aug 22, 2005
-
Malvern,
Pennsylvania
Ok, sorry to make a new thread. I did search for this.
My car will misfire at higher RPM's (5k+), but it idles and drives fine in normal driving conditions. I've check everything (plugs, wires, coils, boost leak, compression, TPS), but the power transistor. I did the procedure today to check it, and it seems that it is bad (for both sets of cylinders) according to the test. This confused me though since the car drives perfect untill you start to go heavy on the throttle. Does this make sense? Should I invest in a new transistor?
I'm confused because it seems like everyone who has problems with their transistors has idling problems and not a problem like this, or at least, not that I could find.
What are your thoughts? Can a power transistor cause a misfire only under heavy load at high RPMs?
Thanks,
Greg
My car will misfire at higher RPM's (5k+), but it idles and drives fine in normal driving conditions. I've check everything (plugs, wires, coils, boost leak, compression, TPS), but the power transistor. I did the procedure today to check it, and it seems that it is bad (for both sets of cylinders) according to the test. This confused me though since the car drives perfect untill you start to go heavy on the throttle. Does this make sense? Should I invest in a new transistor?
I'm confused because it seems like everyone who has problems with their transistors has idling problems and not a problem like this, or at least, not that I could find.
What are your thoughts? Can a power transistor cause a misfire only under heavy load at high RPMs?
Thanks,
Greg