Honda Accord (1990 - 2002) Includes 1997 - 1999 Acura CL

Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

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Old Jul 20, 2009 | 06:03 AM
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Default Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

Well, to fully describe the problem here goes.

At less than 1/4 throttle (about 1/8 the way down), it seems as if the car hits a stumbling block (almost as it has a misfire and seems to sound like a Subaru and just struggles to go anywhere).

What is weird however, is that of you do give it more than part throttle, the problem just goes away and the car just drives right through it. And this only occurs between 2-3 k (where I do most of my driving).

Does anyone have any ideas?? I changed the plugs not much long ago (about 6 months) but haven't checked them yet. I was also thinking TPS sensor since it seems to be throttle related, but I have not clue and do not feel like going into this blind

Thanks much
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Old Jul 20, 2009 | 07:14 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

I've seen something similar happening, sounded just like a boxer subaru... and the problem was electrical, battery/alternator were faulty.
How does it idle? Somewhat normal with a slight fall on the rpms or just completelly normal?
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Old Jul 20, 2009 | 08:26 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

idle is completely normal

Its definitely electric (I hope). Or something along the lines of ignition related.
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Old Jul 20, 2009 | 09:07 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

did u check the plug wires?
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Old Jul 20, 2009 | 09:16 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

If the hesitation only happens at 2-3K RPM, it is probably a clogged EGR port problem.
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Old Jul 20, 2009 | 08:32 PM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

Uuh ****, last year when my car did that (full on subaru sound) I had water on the spark plug tube which causes one or two cylinders not firing coz of the change in resistance on electrical. This happens through out the rpm.

Check the electrical section and your egr
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Old Jul 21, 2009 | 11:06 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

Ever see the CEL come on in history?
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Old Jul 21, 2009 | 11:55 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

Nope. no cel.

I will be checking the egr port here in the next few days when I get some time.

It probably needs a tune-up................We will see.
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Old Jul 21, 2009 | 12:02 PM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

Ohhh, and thanks for the help guys!!!

Well appreciated
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Old Jul 21, 2009 | 07:17 PM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

What year make and model is the problem car? Also what kind of mileage, and history?
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Old Jul 22, 2009 | 04:51 AM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

95 2.2 vtec

180k miles and pretty good history with all the papers
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Old Jul 25, 2009 | 04:12 PM
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Default Re: Part throttle hesistation/stumble/misfire between 2-3K?? Any ideas

Fixed!!!

EGR port (as suggested) was the problem. Looked up the how to on here and now shes running beautifully!!

Thanks much guys. Cost me all of $2.50 and about 1.5 hours (took my sweet ol time since I didnt want to break anything).

It actually feels a little better right above 3k right before vtec engagement. Part throttle misfire is gone as well as off throttle bucking.

Good day
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