Hey- I have an 85 IROC with a TPI 305 and lately at red lights sometimes when I stop the rpms drop and the car stalls. So then I noticed if I let off the brake a little before it stalls- the rpms go up and I can get it not to stall, but then the check engine light comes on and then when I try to go- it doesn't want to go unless I get on it a little. So then I pulled over, turn it off- fire it right back up and it is fine- no light- no bogging out. Also it has been stalling when I park it and shift to park- it just stalls. So I got the check engine light to come on and put a scanner on it and it said I needed a MAF sensor. But then drove it home fine. Not sure if it is the sensor or something else? And then if I buy a new one- what do you think of the adjustable one's? Any help would be appreciated. Thanks in advance. Stu

 

Mafs are kinda pricy, but they do go bad occasionally. First, check the MAF relays and especially the wiring for the maf relays and sensor.

I once had a MAF connector with a pin that would slide up into the connector when plugged-in causing a bad connection. When it was unplugged, the pin would slide back in position and look normal. Took me a while to find that gremlin.

 

Don't forget that the '85 used a MAF Module, separate from the ECM.

 

Hey- everyone thanks for the help. I found a guy on here that says hes selling a Granetilli mass air flow sensor for $200 that he pd 300 for and used for 3 days and then went to a carb.- He hasn't replied to my PM, but hopefully he will soon. Anyway- has anyone tried this sensor and what do they think? Thanks in advance. Stu

 

Before you buy new maf check that minimium idle air has correct setting.

 

Hey-thanks for all the tips. Can some tell me how to adjust the minimum idke air? I looked aroud some and couldn't find how to actually do it. Thanks for the help. Stu

 

I'm not sure a Granetelli MAF will work with your '85. You might want to make sure the one for sale is a 1985 only (digital) type, and not an '86-89 type (analog).