I keep getting a #7 injector improperly functioning code. I swapped the #5 injector with the #7 and cleared the codes. I drove it around a few minutes and the code came back still as the #7. So, I know the injector is working. Next, I checked to see if power is getting to the injector and that was good. Next, I traced the signal wire back to the pcm and I have continuity in that wire. Unless I am missing something, the only thing left is that the pcm is not controlling the #7 injector. Right? This problem just started happening all at once. I was just driving down the road and it started running like crap. It is missing bad, it idles at about 550 rpm's, and it is running crazy rich. Does anybody have any ideas? Sorry so long. Any help will be greatly appreciated.

 

anybody?

 

update.....
it is still running the same with the #7 injector improperly functioning code, but neither of the back two cylinders are running. After its running for a couple of minutes, I can touch the #7 and #8 header primaries and they are cool. The others are too hot to touch.I checked the voltage to all the injectors and they are good. I pulled the fuel rail up enough to see if they are spraying and they all are spraying just fine. I would like to put a noid light on them but I don't have one. Thay are spraying in sequence so it must be working. Also, I checked the spark on all 8 cylinders and they are all firing too. WTF is going on? Is it possible it could have jumped a tooth on the timing chain? Does that even make sense? Anybody please help.

 

Im wondering how you have pinned down the #7 injector since the stock PCM doesnt have that capability. Using a Tech 2 or something?

Could be the opti malfunctioning...

 

I'm sorry.....dumbass me didn't mention this is on a 2002 dodge ram. It is a basic question that could be answered here though. I know you guys have the answer i'm looking for.

 

Uhm...this is ain't a Dodge truck forum. Geez.

 

Doesnt sound so basic to me, man. Is it a HEMI!!!!

 

Yeah...I know that......but I have been coming on here for a long time and I figured some of you guys might be able to help. It is not a Dodge Truck specific question. It is a engine question. If you absolutley can't get past the fact that it is not an fbody, then just pretend. I am out of things to check and was just looking for some input. No.....It is not a hemi. It is a 402 stroker.

 

You know that...so don't post it here. Don't abuse TTT as you did. Abide by the forum rules. Be respectful of the board patrons. Having been on here for a while, you should know that the lounge is where to post non f-body questions.

I guess we will be "pretending" that this is a lawnmower forum next.

 

But my lawnboy wont start...It sputters and I think its the headgasket, what do you think?

 

Wow....i can't believe that some people won't try to help a fellow car enthusiast for the only reason it is not a lt-1. This has really shown me what kind of people are here. Sorry for trying to get some help and sorry for wasting anyones time with a non-lt1 question.

 

There's help. Just post in the right forum. The lounge.

I didn't make the rules.

 

the only reason I posted it here was because I know people like yourself is very knowledgeable and would help out. Like I said, sorry for wasting anyones time. And by the way 1camaro, this is not my truck. It belongs to a friend that I am just helping out reguardless if it's a dodge.

 

Whooooooaaaaaa big fella. You are totally off base. First, you don't even tell people its about a non-F-Body car, then you get pissed off when people object to you posting it in "LT1/LT4 Engine Tech". In effect, you've pushed valid posts to the bottom of the forum, to satisfy your own selfish needs. Someone calls you on it, and you get extremely nasty.

There are other ways to resolve a problem like this, and deceiving people and then putting them down is not the way to do it.

If you have a problem with understanding any of this, send me a PM, and I'll explain it to you as clearly as I possibly can. Just know, you are the one who is wrong... not Shoebox. You owe him an apology, if he's even willing to talk to you.