85vegasvette

Okay I posted earlier while changing the air filter then start at the car it would not start I was thinking it was the MAF connector took the MAF out cleaned it it's not modified stock put it back in same issue disconnected the MAF pigtail start it up Randy could check got a 34 played with the wires some more started it up surging idle disconnected the MAF pigtail again plugged it in smooth out check engine light still on just connected the battery reconnected the battery would not start unplug the MAF started right up plugged it back in smooth right out could it be the pigtail but why after I disconnect the battery won't start until I disconnect the MAF and then reconnected again which throws a code 33 now my question is going to replace the pigtail should I replace the MAF

chevyman_ky

check the terminals in the connector make sure they are not to loose. check maf make sure the terminals didn't get bent plugging and in plugging. I had a ongoing code 33 replaced maf and computer finally got it running good. mines a 85.

Kevova

I would replace or rebuild connector first.( Terminals are available separately.) Since wiggling wires effects operation. I would also check MAF relays then replace MAF if necessary.

85vegasvette

terminal pigtail will be first, im hoping that was it, kinda of wierd, unplug the battrey, reconnect and would not run, unplug the maf smotthed, then repeat same mess...lol,,,,gremlins...that why they made a gremlins 2

gerardvg

Hi
Check the MAF connectors are clean and not corroded, also check the wiring harness connector does it look clean and is the weather seal fitted?

I went to an Ecklers MAF sensor and it works great, stay away from the corvette central MAF that is a different type without the hot wire it did not work would not idle.
They have lost my future business, they could not care less they don't warranty electronics. Even though they say fits 85-89, when the 85 is a one year only MAF they are calibrated for the particular year.
Link below

http://www.ecklerscorvette.com/corve...nsor-1985.html

confab

If you have to change it, I got mine from AutoZone.

So far, so good! Lots cheaper and completely different from the Bosh one.

Here's a pic:

http://www.autozone.com/engine-manag...3_39837_12219/


I dunno if it is better or worse, but it seems to work just fine. *fingers crossed*

85vegasvette

Got the new pigtail connector, replacing it this week, hopefully that will work, question is should i butt plug it or solder, im leaning to solder and shrink wrap

confab

That really should be soldered W heat shrink, IMO.

chevyman_ky

i have that one on my 85 running great now no more codes but it was replaced 2 times to get this one it has lifetime warranty.

85vegasvette

​​Replaced the maf harness pigtails, soldered, shrunk wrapped, fired up..hit has was sluggish smoothes right out, took it for a ride ran great even felt little better..but still code 33, came home disconnected battery to reset no luck still pulling a 33...but it is runni g great what's going on

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crusher1

You may have a leak somewhere in the air intake before or after the MAF. Check for cracks in the boot and double check and tighten the clamps. I had a supercharged 5.7 tpi motor back in the day when I had an IROC. Was throwing those codes because I had a small tear in the intake boot by the clamp, I replaced the boot and it fix the issue. And get a code scanner if you have one and erase the code if not do the battery disconnect again....Try this and see if that helps

JrRifleCoach

First off unless the MAF is F**ked up, DO NOT CLEAN IT!!!!
DO NOT USE any solvents or MAF cleaners. Our engines use a fine wire (RCH) that is easily ruined.
If the engine will start and run with the MAF disconnected its the MAF failure.
If a replacement MAF doesn't work get another that does.
The box stores have always had a high failure rate of these parts and just cause its new/rebuilt doesn't mean it will work.
When you do find one that works never let it out of your sight.
And keep a few relays handy in the spare parts drawer.
You'll thank me someday....

Cliff Harris

Error code 33 is a sign that the connection between the MAF and ECM is broken.

85vegasvette

Of course when it was out i followed like a sheep to slaughter and cleaned it...lol, gonna check the boot and the maf seal....and side note, before i switched the maf connector, it would run with it diconnected.....gonna try today see if does again