rev limiter question (not like the others)

[madman23]

My motor used to have a fast and aggresive limiter that now sounds like it hits the limiter, comes back down a few hundred then goes back up and sort of hesitates. Any thoughts?

[jlevie]

The rev limiter should hold the engine right at the redline. A drop in the tach like that makes me wonder if this is the rev limiter. Something else (bad CPS, fuel problem) might be cause symptoms like hitting the rev limiter.

[madman23]

Thanks.

[madman23]

Checked the ohms and it checked out fine. Maybe the tps?

[jlevie]

A bad WOT switch in the TPS will affect engine operation above 4500rpm on an M20B25. But that manifests as a lack of power. Cutouts that behave like a rev limiter below the redline will be a loss of timing data (bad CPS, bad engine harness, bad DME) or a loss of fuel (low fuel pressure, clogged injectors, engine harness, or DME).

[madman23]

So it wasnt the cps or tps. AHHH. I just saw a video of my old limiter and I miss it.