PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Getting MAF low frequency

Old Jul 17, 2003 | 12:20 PM
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Default Getting MAF low frequency

Trying to get my 422 tuned and I'm getting MAF low frequency. I tried a pace maf and it gives the same code. The car starts and runs for 5 seconds or so and then dies out. I've checked for leaks everywhere I can think of but I can't seem to find anything.
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Old Jul 19, 2003 | 10:47 AM
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Default Re: Getting MAF low frequency

TTT is this a sign of a large vacuum leak??
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Old Jul 19, 2003 | 12:24 PM
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Default Re: Getting MAF low frequency

TTT is this a sign of a large vacuum leak??
I had a huge vacuum leak, due to my Holley intake not seating correctly with a LS6 valley cover and only thing it would do idle at 3K when it went into Closed Loop.

Might be a pinched wire in the harness when you where installing the engine.
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Old Jul 20, 2003 | 02:41 PM
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Default Re: Getting MAF low frequency

check your engine sensor fuse under your hood and make sure it's not blown.

On the only two occasions that I've encountered the MAF low frequency code being thrown, that has been the culprit.
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