Reving too high?

[White'93SHO]

Hi everyone. My problem is this: When I really lay down on it, my ATX isn't wanting to shift until over 7.5k, and possibly even higher. I don't know exactly how high, as my tach only works when it feels like it, but it definitely sounds like it is reving to 7.5k+, and far beyond it's powerband. Why is this? I've read quite a bit, but found nothing leaning this way. I'm stumped!

 

[Ishodu]

When your tach does work, check to see if you hear the secondaries at 3950 rpm. Maybe your tach just reads high, I have seen it before. Also your rev limiter should come on at 7300 rpm.

 

[ohfosho]

pull your engine codes. you could be having coil pack issues or the CID sensor is going regarding your tach.

 

[White'93SHO]

ohfosho: I pulled the codes about a month ago, and I only got the O/D code (button doesn't work, I hope!) and the EGR valve code.

Ishodu: Yes, I can feel the secondaries open, there's no missing it! What I meant by the tach only working sometimes is that it pretty much just moves around alot until I maintain speed, but there is never any solid reliable indication of engine speed. I have read about how the rev limiter is supposed to hit, but I have not felt it, as the tranny isn't shifting fast enough or soon enough, so the engine is reving to where it almost sounds dangerous, with no indication of a rev limiter ala when I rev it in neutral/park. All it does is keep on reving way, way out of it's powerband, but no sensation of the limiter kicking in.

 

[SHOZ123]

What size tires are you using?

 

[White'93SHO]

215-60-16's all the way around, just the stock size.

 

[SHOZ123]

Seeing as the OD button doesn't work and the tach is intermittent I say you have an electrical mess.

 

[White'93SHO]

Unfortunately, I'm afraid you are correct.