Problem with an 86 camaro I could be getting - Team Camaro Tech
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post #1 of 6 (permalink) Old Aug 1st, 03, 06:35 AM Thread Starter
 
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My friend is selling me his 86 EFI Camaro for 500 bucks. I've checked it over and it's in pretty nice shape. Now for the engine: I've been reading about rough idling from about 700-1100RPM and then stalling. That is exactly what his does almost all the time. I haven't driven it yet, but I'm wondering if it will be drivable with this issue as long as there's some throttle when it idles at a light.

Just wondering,

Thanks
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post #2 of 6 (permalink) Old Aug 1st, 03, 07:47 PM
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Is it a tuned port injection system, or a throttle body?? How many miles?

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post #3 of 6 (permalink) Old Aug 1st, 03, 08:14 PM
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Unplug the EGR valve actuator hose and see if it still does it. Unplugging the hose will cause some engine knock under higher throttle but for the test, ignore that.

I have seen bad EGR valves open way too much just off idle and kill the engine vaccum. They are supposed to only open slightly under low speed. carbon buildup inside the valve causes it to go bad. The stem of the valve is hollow.

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post #4 of 6 (permalink) Old Aug 2nd, 03, 03:18 AM
 
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if its a tpi check the maf sensor for the little wire in the center in a square shape, if its not broken its probably vacum leak related or egr or bad spark plug wire or plug or something real easy
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post #5 of 6 (permalink) Old Aug 3rd, 03, 08:25 AM
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ahhh now this stuf i know. the first thing i would check would be TPS voltage it should be about .500-.75 volts. i think that the blue wire is the out put. then slowly slide the tps to see if there are any flat spots. after that check for vacume leeks and such if all is good then look at the egr valve and check that. good luck man
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post #6 of 6 (permalink) Old Aug 3rd, 03, 09:05 AM Thread Starter
 
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I'll have my dad check this stuff out. It's a throttle body I believe. It's around 12000 on the odometer now...Probably been rolled over once is what they expect.

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