Ok I have a 2002 turbo Maxima and its been fine ever since friday night.

I was driving on the freeway and I notice the SES light pop up (I wasnt boosting or driving hard just cruising). I pulled over and checked the code with my OBD II reader and it said P0172 "Bank 1 too rich" I cleared code and noticed my AFRs on my guage running about 12.5 at idle...I was smelling gas. I drove home and cruising AFRs were about 13.2. I get ONE block away from my home and the car just shuts off. Cranks wont start. I had my wife just push the car with hers to a parking spot in front of the house.

So I finally had car towed to the shop that build the turbo. They ran compression test on all 6 cylinders and no problem. Then they found a blown 15A fuse in the long fuse box under the hood that said "ENG CONT 1" They replaced the fuse and car started right up. So they decided to drive car around parking lot and it was fine. The owner of the shop said take it out on the road and make sure. So they were driving down the street and started accelerating a little to keep up with traffic and car shuts off. They open the hood...same blown fuse "ENG CONT 1" they replace it and drive back to shop and try to accelerate to keep up with traffic...blows again...same fuse.

So now they are getting P0222, P1121 and P1122 codes when fuse blows. They are trying to tell me its the Throttle body going bad and I may need to replace it but I dont believe its the TB. That does not account for the P0172 code that I got before it blew the first time. The TB is relatively new off a 2009 Maxima and has been fine up until now. I think it might be some short in the wire or something somewhere in the engine. Anyone else had these problems before? Any advice?

 

You have a short in either your IPDM or BCM...more so you IPDM since the fuse was under the hood. I would hit up a scrap yard for a cheap replacement to test it out.

Good Luck! Keep us posted!

 

If the entire IPDM was bad then why the same fuse blowing? Wouldnt it be different fuses?

 

I'm not sure...I have a short in my BCM, my interior dome light fuse keeps blowing on contact! Everything else works fine? So I'm guessing the same with your situation. It's either the IPDM or a short on that circuit. I could be wrong, but this is my experience with it.

Jerryd87 is another member who has had troubles with the IPDM and starting issues...hit him up!

 

I looked at the FSM and is says that primary and secondary O2 sensors for bank 1 and FUEL b1 are on that circuit. So I'm thinking since I got a P0172 BANK 1 TOO RICH code then its something wrong with fuel injectors or O2 sensor wiring for bank 1.

 

Probably melted (shorted) a connector/harness/loom into some hot piping.

 

my issue was the ipdm was grounding out my entire harness so the big fuse would blow but that was the big one(160 amp iirc) in the fusible link holder. wasnt enough to blow the smaller ones but all of them added togeather would blow the big one.

 

02 03 maxima = no ipdm ....

 

Check your engine mounts. Yea the engine mounts... I heard older maximas with active engine mounts which go bad blow a main fuse and kill the engine (I LOL'd when I heard it but it was from a reputable source haha). Sounds awfully similar to your issue.

 

most likely you have a loose ground. if your ecu fuse is going bad. even make sure that your exhaust is grounded if applicable.

 

My dome light fuse also blows within the first minute/ or on contact. I've replaced it 4 or 5 times in a row and it keeps doing the same thing. I dont need it so i never bothered to try and figure out why it blows lol. Possibly your same issue with the BCM then.

Ranmas any updates?

 

See if one of the oxygen sensor harnesses melted by coming in contact with the exhaust.