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About to go readjust the TPS... ....I followed the FSM procedure with all the steps for minimum idle adjustment, so should be good. Short version of all this is that while I was hunting for the cause of my post-tuneup miss/stutter, I was manually moving/holding the throttle mechanism a lot...

fixed can't express the relief I'm feelin now fixed with the idle stop screw, will post details after dinner

Wouldn't upset me if it ended up being that, mine are ancient and on my replace list.

Good info thanks! Will update tonight one way or another...

Will do! Got the dry gas, EGR, and IAC to try tonight before updating...fingers crossed.

Hey John, awesome tip, wouldn't have thought of that, though the problem did start happening soon after a fillup...hope it's that easy! cheers

Hi, 1987 Automatic Coupe, starts up and immediately stalls/dies unless given gas. Next best step after...? INFO: - Will continue to "idle" in Park at stable RPM with gas held down, as low as 900...releasing gas = instant stall - Fuel Pressure good, fuel pump runs for 2 secs pre-startup as...

Hi all, Since I replaced the plugs, wires, cap and rotor, I've got a slight jerk/stutter around the 1800-2100 rpm mark while maintaining a steady speed/rpm. Not sure if this qualifies as a 'miss' or not. I replaced the new Delco plugs today with no-gap Bosch Platinum 2's, but the problem still...

Hi all, I'd ordered rear compartment trays from redlinecorvette on ebay, but they never showed. He promptly refunded my money without any hassle. Lots of good C4 stuff from him on ebay and will continue to buy from him based on this. cheers

Ahhh, already drooled over that thread. :)

Looks very nice! Is that an aftermarket/painted inside door handle? I was looking into the insulator more for reducing volume when driving, as mine sounds solid when closing. Thanks for the info.

Awesome, thank you c4cruiser. My 87 will eventually need to be totally stock to qualify for cheap Collectors insurance, so I want to get the right mats and paint the console lid. cheers

Awesome, thanks alyle5864...just the kind of feedback from experience I was looking for.

Hello all, Searched around a good bit but didn't find an answer to these questions. Any help appreciated... 1 - Are the soundproofing door insulators which were standard in later years worthwhile to install on an older C4? 2 - What did the original floor mats in my 1987 look like? Emblem? 3...

Nice, much better looking than my straight hose long route.

Me too - next time will do the whole thing though I imagine.

I would love an LT4 Vette, and I plan to get one when I'm able to trade up or get a 2nd one. The combination of killer power + late C4 body + 6speed + special 'cause it's not in FBodys(aside from rare slps) = awesome.

You did a full flush? I've never done a full one, but I think you take the knock sensors out to get it all out right?

I believe it's about 2.5 gallons...

That sounds pretty brutal, unless all you do is stomp the gas from stoplight to stoplight...have you ever reset it?