Chevy C1500 5.7L...Bad ECU???? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 05-22-2009, 08:41 PM   #1 (permalink)
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Chevy C1500 5.7L...Bad ECU????

Hello, I have a 1998 chevy c1500 with the 5.7L motor...I have 3 CE lights.... p340 p440 and p102... the p102 is a MAF code...i cleaned the MAF but did nothing...I bought a new maf from kragen but the code is still on...Now someone told me that i might have a bad ECU...do these things go bad??? when i clear the code with my scanner the MAF p102 comes right back on...

any help??
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Old 05-23-2009, 05:34 AM   #2 (permalink)
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Sounds like a wiring problem to me.
Get yourself a service manual and follow the troubleshooting flowchart.
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Old 05-23-2009, 06:46 AM   #3 (permalink)
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Is there a MAF relay in the circuit?
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