Temporary IAT Sensor Solution to 5 Wire MAF

[S10Wildside]

I'm very new to OBDII tuning and EFILive, but when I learned of the IAT issue with the 5 wire MAF, I thought of a temporary solution. I'm not sure how many are disabling the MAF for Auto VE, then enabling it again (is this how it's typically done??).

I dug into our parts bin and made two types of adapters to use only the IAT portion of the 5 wire MAF sensor. Unfortunately there is no mating connector to the MAF connector, so I came up with two alternatives.

If this looks useful as a temporary solution, I can make them available for purchase at http://www.eficonnection.com. If hood clearance is an issue, the long adapter could be used. Otherwise, the short adapter would probably be ideal. The pins used are the correct mating terminals to the MAF connector terminals.

http://www.eficonnection.com/eficonnection/images/maf_iat_adapter_short.jpg http://www.eficonnection.com/eficonnection/images/maf_iat_adapter_long.jpg

http://www.eficonnection.com/temp/firehawk_maf01.jpg

[S10Wildside]

Here are some pictures of my 03 Silverado SS and 00 Firehawk.

http://www.eficonnection.com/temp/firehawk_maf02.jpg

http://www.eficonnection.com/temp/firehawk_maf04.jpg

http://www.eficonnection.com/temp/sss_maf01.jpg

http://www.eficonnection.com/temp/sss_maf02.jpg

[TAQuickness]

Innovation at it's finest. How much do you charge for these?

[S10Wildside]

Innovation at it's finest. How much do you charge for these?

They're available at http://www.eficonnection.com/eficonnection/other_pigtails.aspx.

It should go without being said, but I do not recommend using these adapters for anything but temporary tuning. In other words, don't leave this in a customer's car (or your own) when you're done tuning. The proper way to eliminate the 5 wire MAF is to install an IAT sensor somewhere and use this IAT connector.

http://www.eficonnection.com/eficonnection/images/IAT_pigtail.jpg

I think I've emphasized the temporary use of this MAF adapter enough. :)

[Highlander]

why would you need to use this?? if the maf is disabled.. what is the problem with running the MAF to the PCM???

[S10Wildside]

why would you need to use this?? if the maf is disabled.. what is the problem with running the MAF to the PCM???

The 5 wire truck and Corvette MAF contain the IAT sensor. When you unplug the MAF connector, you also unplug the IAT sensor.

The f-body has a separate IAT sensor and has only three wires going to the MAF. My Firehawk pictures are misleading in that I've upgraded to an 85mm 5 wire MAF from a 99-newer truck.