rough running GTUs....bad miss down low and up top....any ideas?
02-11-04, 01:24 PM
#1
Junior Member
Thread Starter
Join Date: Feb 2003
Location: MA
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
rough running GTUs....bad miss down low and up top....any ideas?
I've got brand new plug wires and plugs. i'm guessing either one of the coils have gone or are going bad...or possibly one of the fuel injectors has crapped out on me. the miss at idle it very noticeable, and up top it starts around 6300 and goes pretty much until 8000. anyone have this problem before? thanks!
Scott
Scott
02-11-04, 01:53 PM
#2
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
Easy to test the coils with a spark tester.
Bad injector is more difficult to diagnose, but I would start by pulling the plugs and examining them. Wet with fuel would indicate a bad coil, completely dry would indicate an injector that's not firing.
I would assume you have eliminated common problems like vacuum leaks, and have adjusted the TPS?
Bad injector is more difficult to diagnose, but I would start by pulling the plugs and examining them. Wet with fuel would indicate a bad coil, completely dry would indicate an injector that's not firing.
I would assume you have eliminated common problems like vacuum leaks, and have adjusted the TPS?
02-11-04, 02:50 PM
#3
Junior Member
Thread Starter
Join Date: Feb 2003
Location: MA
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
alright thanks i will check out the injectors because my plugs are always dry...what is the max output (voltage)that the TPS should show. I will have to test that and see what happens thanks...
Last edited by rx789gtus; 02-11-04 at 02:54 PM.
Thread
Thread Starter
Forum
Replies
Last Post
befarrer
Microtech
3
08-22-15 05:52 PM