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Jun 7, 2013 | 01:21 PM

Derrick1227

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Staging Lane

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Problem

So I'm having issues with my 02 Z28 it only has 67,000 miles. Just within the past two weeks I've changed the spark plugs, O2's my pullies and belts as well as a new alternator. Also just switched from Mobile 1 to Royal Purple. My mods are LT headers Volant intake and frost tune. I'm not throwing any codes yet and yet when I'm idling or under slight acceleration it just sputters and acts like its going to die. Under moderate throttle it seems to stop. So any suggestions because I'm completely lost.

Jun 7, 2013 | 01:24 PM

1320Chicken

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From: Winchester, VA

Vaccum leak? Loose electrical connection at the coil packs?

Jun 7, 2013 | 01:28 PM

Derrick1227

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Staging Lane

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The only thing I didn't think about was my AIR hasn't been tuned out and I can hear it running or attempting to run should I pull the fuse to turn it off? I'll check the connections when I get off work.

Jun 7, 2013 | 03:52 PM

Derrick1227

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Staging Lane

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So here's a little more detailed info. I took the car for a drive after work and the issues while idling had stopped. However when I would be going about 40 and would give it slight gas it would sputter til it got to a lil over 45 then stop. Also WOT there is no sputtering nor when it downshifts for a hill or more speed etc. Only when its slight throttle other than that it is running fine. I'm confused.

Jun 7, 2013 | 04:06 PM

Rich-L79

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From: Nebraska, The Good Life

Did you replace all those parts to try to cure these problems or did the problems begin occurring when you replaced all these parts?

Jun 7, 2013 | 05:02 PM

Derrick1227

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Staging Lane

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No I just felt with the car being 11 years old it might be a good time to replace things I had changed the plugs before. But I noticed it after these things were done.