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Gary Yarbrough · 07-25-2009

Here's where it will stand today:
I've got the TPS at the correct voltage. Operation seems smooth.
I've changed all plugs other than the dreaded #8. I'll need a new spark plug socket to put it in...will pick one up today if they have them at Sears.
All new injector coils.

Took the car for a spin: some improvement but still not perfect.
Then I changed my chip from a JVD chip to a DRM chip. Seemed a little better (or I may be imagining things). However, I feel that the JVD chip was better at the top end.
Best I can tell, it is now running okay above 2K RMP. Any chance getting the last plug in could cure the problem?

As for the backfire, it is hard to tell. I'm always in the car when it happens and I have some hearing loss that prevents me from knowing which direction sounds are coming from with any degree of accuracy.

Later, I'll get my wife to rev the car and see if I can pinpoint the noise.

Thanks for everyone's help!

07-25-2009	#7
Gary Yarbrough Join Date: Nov 2008 Location: Wilson, AR Posts: 63	Re: Rough Idle/Hesitation/Backfire Here's where it will stand today: I've got the TPS at the correct voltage. Operation seems smooth. I've changed all plugs other than the dreaded #8. I'll need a new spark plug socket to put it in...will pick one up today if they have them at Sears. All new injector coils. Took the car for a spin: some improvement but still not perfect. Then I changed my chip from a JVD chip to a DRM chip. Seemed a little better (or I may be imagining things). However, I feel that the JVD chip was better at the top end. Best I can tell, it is now running okay above 2K RMP. Any chance getting the last plug in could cure the problem? As for the backfire, it is hard to tell. I'm always in the car when it happens and I have some hearing loss that prevents me from knowing which direction sounds are coming from with any degree of accuracy. Later, I'll get my wife to rev the car and see if I can pinpoint the noise. Thanks for everyone's help!