I need help

[J.T.]

So i rebuilt my 4.6 and now i put it back in and it has a miss. I cant figure out where it is. It seems random, I checked the cam and crank sensor and they were plugged in. I dont know what else to do. Anybody have any ideas or anything I can rule out?

 

[J.T.]

New info, check engine code p0174. anybody?

 

[gt96stang]

http://www.sn95forums.com/forum/index.php?topic=16533.0 :thumb:

system too lean.. bank 2

 

[96GTvert]

p0174 = system too lean (bank 2).

Rear 02 sensor is shot. I read that if you clean the MAF sensor it will fix that CEL code, but I haven't tried this for myself so I can't verify that it works, but it couldn't hurt to give it a try.

 

[J.T.]

Sweet I will try that and check my o2's maybe I left one undone.

 

[96GTvert]

Yea, I would do that first before trying anything else or paying to have the car checked out? It could be something really simple that will solve your problem, but I was glad I could help man, let me know how it turns out.

 

[gt96stang]

p0174 = system too lean (bank 2).

Rear 02 sensor is shot. I read that if you clean the MAF sensor it will fix that CEL code, but I haven't tried this for myself so I can't verify that it works, but it couldn't hurt to give it a try.

My rear 02 sensors that were bad NEVER caused my car to missfire..

 

[96GTvert]

I wasn't talking about it fixing the missfire, I was just talking about it fixing the CEL code that he was getting.

 

[Jrgunn5150]

Radom as in completely random? Does it do it warm/cold, part throttle/full throttle, under a heavy load (like 5th gear and 1200 rpms) or under no load?

 

[Bluesn95]

I think your wires could have crapped out

 

[blackgt4.6]

definitly need more info on whats going on to be much help. Most common things are dirty maf, iac.