HELP......94 Q45

[Rokketarm]

A friend of mine was looking at my MAF harness, touched 2 of the connectors together on the harness, heard a pop and now my car will not start. Any suggestions as to what went wrong?? What do I need to do to fix this problem? Any help would be greatly appreciated...Thanks

[maxnix]

First, ties his hands behind his back.

Next, check your ECU. Dollars to donuts it's fried. Might check with Wes to see if the upgrade will fix it.

[Rokketarm]

How do I check the ECU to see if it's fried? How easy is it to put install a new or used one? Thanks

[Jesda]

ECU is located behind the kick panel on the passenger side floor.

[db_autotek]

I would start with the ecu too. Like Jesda said, just go to the pasenger side and pull off the kick panel ( 2 clips and one 10mm nut ). There is a way to put the ECU into diagnostic mode and so forth. You have to have a service manual to go forward. Your car should have one from the factory (thanks Infiniti) in the trunk by the spare tire.

If not, go to http://www.phatg20.net/modules...id=62

Now look to page 169, (or page 51 within the Engine Control and Emissions section) and that will help you put the ECU into diagnostic mode.

You said you heard a "pop". I strongly suggest checking every single fuse in the car. It might just be a $2 fuse and your back on the road!!

[Rokketarm]

I did the diagnostic test with the ECU and nothing came up as a malfunction. I also checked all of the fuses and their all fine. Are there any other fuses on the motor somewhere that I'm not seeing?? Any suggestions are greatly appreciated....

[Rokketarm]

Quick question: is it possible to fry part of the ECU, and still have the rest function? I'm getting no power through the wiring harness to the MAF

[goody90q45]

A friend of mine was looking at my MAF harness, touched 2 of the connectors together on the harness, heard a pop and now my car will not start. Any suggestions as to what went wrong??

Read through this two page post by Amybirds who had the exact problem as you. I think the end result is that the ECU is fried. Hope this helps.

zer...age=1

[Rokketarm]

Goody, thanks for the link and info! I replaced the ECU today, and she's running like a champ once again...Just for future reference, ANYTIME you work on your MAF, disconnect the battery beforehand and you'll save yourself the stress and B.S. I went through. Thanks everyone for all of your help!

[goody90q45]

Goody= +1

Glad I could help.

[maxnix]

Goody= +1

Glad I could help.

Hey, I had the first lucky guess!

Glad you got it back on the road. Cuff your freind the next time your hood is opened.

[goody90q45]

Hey, I had the first lucky guess!

Oops. You're right. I'll take credit for presenting the compelling evidence.