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Jan 10, 2011 | 09:19 PM

mo99z28

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New air lid

So i just put the SLP air lid on my 99 z28 and since then my car does not want to shift into 3rd gear i know the MAF links to trany. So do i need to retune my cpu or is my MAF shot and i need a new one.
trouble shot; connections, fuse, trany fluid, oil change.

P.S. car has been on park status for six months due to recent deployment although it was started for 30 mins at least twice a week, has new oil, new fuel and injector cleaner.

PLEASE HELP

Jan 10, 2011 | 10:30 PM

joshp14

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Simply putting on an air lid will not cause the trans to not shift to third. If you dont believe me, put your old one back on and I bet it'll do the same thing. Perhaps the element in the MAF may have been damaged. Is your SES light on?

Jan 10, 2011 | 10:32 PM

mo99z28

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no light on at all... so dont know what to do...

Jan 10, 2011 | 10:44 PM

Phstratton

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Might wanna check the fluid in the tranny. Could have a leak...who knows?

Jan 10, 2011 | 11:00 PM

mo99z28

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checked out the trany fluid its good im just not sure if my MAF sensor is shot or if i need to tune my on board cpu...

Jan 10, 2011 | 11:17 PM

Phstratton

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You're not gonna have to tune your PCM just cause you did an ls1 lid mod. I'd say chances are it's your MAF. Mine didn't trip a light when it first started going out.

Jan 11, 2011 | 12:00 AM

mo99z28

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and will the MAF sensor cause my trany to not shift from 2nd to third on low rpm?

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Jan 11, 2011 | 09:35 AM

Joshu

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Like with everyone else, I HIGHLY doubt the problem is with your intake or MAF.

Jan 11, 2011 | 12:09 PM

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mo99z28

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It is an automatic and from what i understand it the MAF sensor is linked to the transmission and it has been doing this after i installed the new air lid. Does any one know what oam resistance the MAF sensor needs to be to function properly?

Jan 11, 2011 | 02:58 PM

#11

wssix99

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Quote:

Originally Posted by mo99z28

Can you post a pic of your install on the lid? The MAF shouldn't have been touched, but the air temperature sensor would have. Do you have it back in?

Jan 11, 2011 | 04:17 PM

#12

KevinR

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From: Euless Tx

Pic didn't work.

Jan 11, 2011 | 05:03 PM

#13

1 FMF

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Quote:

Originally Posted by mo99z28

my car does not want to shift into 3rd gear i know the MAF links to trany.

forgive me for asking, but how do you know the MAF links to the tranny?

Jan 11, 2011 | 05:07 PM

#14

jsteele90

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From: delaware

i know if the maf is going bad it will throw a code and make the tranny shift incredibly hard because it increases the line pressure a shitton. as far as not shifting never had that problem.

Jan 11, 2011 | 08:48 PM

#15

mo99z28

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Quote:

Originally Posted by 1 FMF

forgive me for asking, but how do you know the MAF links to the tranny?

read about it in a book

not tryin to be a smart *** but thats pretty much what it said as far as chevys go.

Jan 11, 2011 | 10:13 PM

#16

1 FMF

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do you remember the book? it makes no mention of it in my service manual and i would like to know more about it.

Jan 12, 2011 | 12:18 AM

#17

need4fun2469

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could it be possable that since your car had been sitting for 6mo that the seals are dried out? I had a friend that had the same problem is why I'm asking. He only has 1st and 2nd gears.

Jan 14, 2011 | 10:32 PM

#18

mo99z28

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Thanks for the responses but I ended up taking my car to a transmission specialist and it was the seals and a couple of other things so its getting fixed now with a couple of upgrades....