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Thread: Cold Start Issue
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04-07-2009, 09:08 PM #1
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Cold Start Issue
This just started about a week or so ago and it does not do this all the time.
The problem seems to happen when the air temperature is at or below 40 degrees. I start the car, and the best i can describe it, is it sounds like a pulsating miss. If you give it some rpm it, just sounds awful. But, as you let it idle, for a couple minutes, it smoothes out and eventually runs normally.
Turn it off, and start it again, nothing. Runs fine.
What gives?1991 Z28
Engine: '94 355 LT1, GM hot cam, 1.6 RR's, Ported Heads, Dyno Don's headers, #30 SVO injectors, stock internals with skirted pistons.
Drivetrain: '95 T56, pro 5.0 shifter, hayes clutch, Stock 10 bolt with 3.42's
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04-07-2009, 10:31 PM #2
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i have no clue my cars done than ever since ive had it, thats been bout a year and since the cam its little worse. doesnt bother me to much, but when i get the tune done hopefully it solves it
97 formula m6- intake, bbk headers, underdrive pulley's, SLP loudmouth, centerforce clutch, B&m Ripper, 160 thermostat, od1 conv, CC503 cam, 1.6 roller rockers, behive springs Meziere pump
03 hemi ram 1500--true flow intake, flowmaster dump, superchips, and 4.56 rear end
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04-07-2009, 10:39 PM #3
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Does your SES light come on? if so what codes? My ses light doesnt work i didnt wire it when i did the swap.
1991 Z28
Engine: '94 355 LT1, GM hot cam, 1.6 RR's, Ported Heads, Dyno Don's headers, #30 SVO injectors, stock internals with skirted pistons.
Drivetrain: '95 T56, pro 5.0 shifter, hayes clutch, Stock 10 bolt with 3.42's
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