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Discussion Starter · #1 ·
P0125 "Closed Loop Fuel Control Insufficient Coolant Temp"

P0500 "Speed Sensor Malfunction" (haven't hooked up Speedcal)

P1506 "Idle Air Control Overspeed Error"

P0303 "Cylinder 3 misfire"

PLEASE tell me my car isn't screwed.. what are some remedies??

The scanner showed 8 codes, but simply repeated those 4 codes, twice???

ANY HELP IS GREATLY appreciated!
 

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Seems that I just cleaned the IAC valve not too long ago, but I'll do it once more.. if problems persist I'll purchase a new one

I also just ordered 180* Thermostat, Screamin Demon 42000 Volt Coil Packs, and MSD 8.5mm wires to replace all the stock units

I changed to NGK plugs 6 mos ago, so I'm hoping they are fine..

I'll pull #3, and look for detonation

I'll also be putting Fuel Injector cleaner in with the next tank, and looking into the Electric Fan/Water Pump and lines
 

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those codes will show then after 3 cycles they will go off then they will come back on again thus giving you 4 codes 2 times=8 codes same thing happened to me. Also have you started the car after changing the plugs and the #3 was not on good that happened to me I fixed it right then but it still threw the code 10 minutes later, never seen any of those other one's
 
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