Mast Air Flow Sensor

[Tony Eupizi]

Background, I have a GM crate engine and their wiring harness. I when to plug in the MAF sensor and the wiring connector has a different plug. The plug is too big for the sensor. Another quality issues. Has anyone had this issue and if so can you tell me what MAF sensor I should use. These issues never seem to end!!

Thanks:thumbsdown:

 

[Jerry Jackson]

Tony, I have an LS7 crate engine in my SLC. The wiring harness came with a short adapter cable to convert from the connector on the harness to the one on the sensor. Call GM performance if you did not get this part, they are helpful.

 

[Alex]

Do you mean the MAF (attached to the intake tube) or the MAP (attached to the throttle body).

If MAF I've never heard of a conversion piece needed.

if MAP you need a jumper like
LS3 Map Sensor to LS2,LS1 Map Harness 24 Inch Long: Lingenfelter Performance Engineering
(although it usually comes with the wiring harness package from gmpp)

 

[Tony Eupizi]

The MAF sensor that goes into the intake tube. The part on the box is correct 1586791 but the sensor is wrong. I talked to JEGS and they had me contact the GM performance people. The sensor number for the correct part is AFH70M-43A. The one they sent me is AFH70M-38. GM performance told me to go a dealership for a replacement but since I didn't purchase it from them they won't exchange. Another $70 dollars for an issue I didn't cause!

Pissed off in Michigan

 

[Alex]

fyi the dealership should have done an over the counter warranty. My last GMPP wiring harness was wired incorrectly (did not turn off when switch 12v went off). I didn't want to deal with the cross-border exchange again (bought from Pace Performance) so I contacted GM performance and they said any dealer in any country can do the warranty. Went to a dealer, of course they denied it, I had them call GM performance and eventually they accepted they could warranty & replace it like any other GM OEM part, even though I bought it from a US-based online retailer.

 

[Ken Roberts]

fyi the dealership should have done an over the counter warranty. My last GMPP wiring harness was wired incorrectly (did not turn off when switch 12v went off). I didn't want to deal with the cross-border exchange again (bought from Pace Performance) so I contacted GM performance and they said any dealer in any country can do the warranty. Went to a dealer, of course they denied it, I had them call GM performance and eventually they accepted they could warranty & replace it like any other GM OEM part, even though I bought it from a US-based online retailer.

That's a great fact to know Alex. Thanks for sharing that info.:thumbsup: