Mechanics

HELP PLEASE!!!

1999 Dodge Ram • 125,000 miles

I have a 99 dodge ram 2500 v10 4wd I have changed idle air sensor. Complete tune up coils wires and plugs I chaged drive o2 sensor cause light was on but truck still runs rough like it has a misfire on a cyclinder. Heres what it does when at idle ir kinda pops in the exhaust like it has a miss or loading up on fuel you can rev motor a couple of times and it clears up when u rev motor u can smell a hint of fuel. If I sit at a red light and go to take off it starts to sputter with very low power if u ride it out and listen u can hear it popping in the exhaust like a backfire but when it clears you get massive power quick and then its fine till next red light. If you drive truck on interstate your fine no problems hits passing gear fine. Im stumped can anyone help please


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Matthew0811
August 15, 2012.



Please help im on the verge of going nuts not being able to figure it out

Tiny
Matthew0811
Aug 15, 2012.
Start with a compression test. Once that is done, make sure you have the wires on correctly. It is easy to cross them.

What was the codes? When did this start?

Roy

ASEMaster6371
Aug 15, 2012.
I have done compression. All cyclindrs r over 100 wires aren't crossed I've double checked myself thing so

Tiny
Matthew0811
Aug 15, 2012.
Code was lean o2 bank 1 sensor 1 And been doing this for about a month just started out of nowhere

Tiny
Matthew0811
Aug 15, 2012.
02 sensor was extremely black when replaced truck started smoking black when o2 sensor light came on so replaced 02 and stopped smoking now just acts like a misfire. Only would smoke under heAvy throttle or towing

Tiny
Matthew0811
Aug 15, 2012.
Do you have acess to a scan tool? You need to monitor the long term trims on the o2 sensors to see what is happening

Roy

ASEMaster6371
Aug 15, 2012.
No I do not have access to a scan tool

Tiny
Matthew0811
Aug 15, 2012.
Any way to do so without a scan tool

Tiny
Matthew0811
Aug 15, 2012.
What about a injector problem not allowing injector or injectors to fully close and loading up on fuel? Just a thought.

Tiny
Matthew0811
Aug 16, 2012.
Did you figure out the problem I have a 98 that does the exact same thing please let me know thx

Tiny
Lawnguy0321
Sep 29, 2012.