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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

maf question

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Old Aug 4, 2009 | 05:05 PM
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Ok I've read alot of post about this and it seems people can unplug there maf and there car will still start. If I unplug my maf my car will not start the motor just turns over. I have to plug the maf back in unhook the battery and let it reset before the car will start again. Why? I have switched mafs out before and still have the maf code. I'm starting to wonder if my computer is bad. Thanks for any advice.
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Old Aug 4, 2009 | 07:55 PM
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Is this normal? If not what could be making it do this?
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Old Aug 5, 2009 | 10:50 AM
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can no one can tell me for sure if my car should start with the maf unpluged? And if so why mine won't? Thanks
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Old Aug 5, 2009 | 11:41 AM
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Your car will start, just keep trying. It might struggle for a while, but give it some gas and it should start up. If you have a code for the MAF and you swapped in a known good MAF and the code didn't go away, I would suspect a wiring issue.
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Old Aug 5, 2009 | 02:46 PM
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Thanks for the response. I tried it again giving it gas and tring to start it until the battery went dead. It still never started.
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Old Aug 5, 2009 | 03:04 PM
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Originally Posted by Dundee1
Thanks for the response. I tried it again giving it gas and tring to start it until the battery went dead. It still never started.
That is not normal. When I unplug my MAF, it might struggle to start for a second, but it always starts up.
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Old Aug 5, 2009 | 03:27 PM
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well atleast the radio works good cause nothing else on this car seems to work right lol do you think it might have to do with the computer?
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Old Aug 5, 2009 | 11:19 PM
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My Impala would start without the MAF plugged up. It wouldn't idle very well but it would crank. I tried a couple of known good MAFs and still had the code with crappy idle. Ended up just going with a speed density tune.
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Old Aug 6, 2009 | 10:09 AM
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So getting the computer retuned got the maf code to go away and the car to act right? Thanks for your reply
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Old Aug 6, 2009 | 11:13 AM
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Originally Posted by Dundee1
So getting the computer retuned got the maf code to go away and the car to act right? Thanks for your reply
Exactly what code do you have. Don't reprogram anything until you figure out the real problem.
FYI, a speed density tune eliminates the MAF. Only really needed for heavily modded cars. It's more expensive than a regular tune too.
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Old Aug 6, 2009 | 02:48 PM
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Originally Posted by Dundee1
So getting the computer retuned got the maf code to go away and the car to act right? Thanks for your reply
The code only went away because it was turned off with the speed density tune. I just went that route because it was easiest for me.
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