90 4x4 22RE acceleration problem

Hi:

I have a stubborn problem with acceleration on my 1990 4x4 Toyota truck with 22RE engine.

It has poor acceleration in almost any gear UNTIL I either floor the accelerator OR the RPM climbs high enough (perhaps over 3000 rpm?). It seems almost a like a vacuum advance problem except that this engine doesn't have such a system.

It idles fine and it accelerates like a bat out of hell once I floor the accelerator or the rpm gets high enough. I've checked the plugs, air gap in the distributor. Timing is right on 5 degrees with the appropriate contacts shorted out.

Any ideas that I could look at?

Dave

Reply to
dave.mcc
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And I was wondering if possibly the Air Flow Meter could be the culprit. Has anyone had experience with troubles from that part?

Reply to
dave.mcc

Yep! The AFM can cause that. See:

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Reply to
Jeff

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