Engine misses at idle sped

TOYOTA 4RUNNER
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JOSHKERCH
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My 1996 SR5 V6 4Runner has 148,000 miles and misses at idle speed / when the RPM's are low. For example, when I am going about 50mph, and the RPMs are around 2,000. I will try to acclerate and the engine misses. It runs smoother as soon as it downshifts and the RPMs increase. It will also miss when I am just sitting there idle. I had the timing belt replaced at 120,000 miles. The transmission was flushed, and the fuel filter was also replaced very recently. I also just replaced the spark plugs and wires. My next step will be to replace the ignition coil packs. Hopefully that will fix the problem, and I won't need a compression check. But I would appreciate any advice.
May 2, 2007 at 10:03 PM
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RASMATAZ
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I won't need a compression check. You do

The compression check is done to evaluate the condition of the engine. You can throw new parts to it and if there's a problem internally your right back to square one.

My advise is to check the actual fuel pressure-and these CTS/TPS/MAF sensor-to include the VSS.

Engine in perfect condition, it leaves the fuel and ignition wide open-diagnosis should be in order for this two to get to the problem and who knows it might be coming from an emission control devices.

Good Luck
May 3, 2007 at 2:05 AM