Idle issue
#1
Registered User
Thread Starter
Join Date: Aug 2005
Location: Springs, Colorado
Posts: 1,671
Likes: 0
Received 0 Likes
on
0 Posts
Idle issue
Ok, my truck will only stay alive with the idle adjusted real high, i dont have a tach so i cant get an exact number. but if we lower it it bogs down and dies. the timing is on, new plugs, compression was 130 all the way across, now could it be the EGR valve? we found some akward wires, does anyone have a wiring diagram or a link to one? thanks
I searched but didnt find anything relevant.
I searched but didnt find anything relevant.
#2
Registered User
Join Date: Sep 2006
Location: Dinwiddie Virginia
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
Just a thought. Did you check the TPS? Vacuum leaks? Here is a link to a FSM.
http://personal.utulsa.edu/~nathan-b...fsm/index.html
http://personal.utulsa.edu/~nathan-b...fsm/index.html
#6
Registered User
Join Date: Sep 2006
Location: Dinwiddie Virginia
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
The FSM has a section that shows you how to adjust. Go To:
Engine
Throttle Body
Tps will be at end of section.
Not saying that is problem but it is a simple check .
The FSM has a good troubleshooting section also.
Engine
Throttle Body
Tps will be at end of section.
Not saying that is problem but it is a simple check .
The FSM has a good troubleshooting section also.
Last edited by Yotapup; 01-10-2007 at 06:33 AM.
Trending Topics
#8
Registered User
#9
Registered User
Thread Starter
Join Date: Aug 2005
Location: Springs, Colorado
Posts: 1,671
Likes: 0
Received 0 Likes
on
0 Posts
Someone cut off the plug to some wires on top of the engine so we dont know where to put them. ill find out the colors later, does anyone have a wiring diagram or a link to one? thanks
#11
Registered User
Thread Starter
Join Date: Aug 2005
Location: Springs, Colorado
Posts: 1,671
Likes: 0
Received 0 Likes
on
0 Posts
red/black stripe
blue/white stripe
yellow/black stripe
They are all single wires and
They are in the same strand of wires as the emmisions
blue/white stripe
yellow/black stripe
They are all single wires and
They are in the same strand of wires as the emmisions
#12
Registered User
Thread Starter
Join Date: Aug 2005
Location: Springs, Colorado
Posts: 1,671
Likes: 0
Received 0 Likes
on
0 Posts
I believe i read that the red/black stripe, deals with the tps, however the tps plug in is un cut. here is a pic of the cut wires.
What does this sensor do? i think the yellow/blackstripe went to it...
What does this sensor do? i think the yellow/blackstripe went to it...
#15
Registered User
Thread Starter
Join Date: Aug 2005
Location: Springs, Colorado
Posts: 1,671
Likes: 0
Received 0 Likes
on
0 Posts
well the engine was still cold, i am pretty sure it will jump up soon, it was sitting for a while the piston rings werent sitting right so we used some tranny fluid through the spark plug hole to help and they jumped from 120 to 130 and 90-130.
#17
Registered User
If I can remeber to do so I'll look at a wiring diagram at work on Monday and get with you on those wires. The only diagrams I have available to me right now only go back to '90 and they do not show any wires those colors.
The single yellow/black wire could be to the oil pressure switch and the brown/black wire is likely to be a sensor ground.
The single yellow/black wire could be to the oil pressure switch and the brown/black wire is likely to be a sensor ground.
#20
Registered User
Thread Starter
Join Date: Aug 2005
Location: Springs, Colorado
Posts: 1,671
Likes: 0
Received 0 Likes
on
0 Posts
If I can remeber to do so I'll look at a wiring diagram at work on Monday and get with you on those wires. The only diagrams I have available to me right now only go back to '90 and they do not show any wires those colors.
The single yellow/black wire could be to the oil pressure switch and the brown/black wire is likely to be a sensor ground.
The single yellow/black wire could be to the oil pressure switch and the brown/black wire is likely to be a sensor ground.