|
Author
|
Topic: ignition problem
|
1fast281
¯
Member # 4670
|
posted
 
 
I just put in new copper plugs to replace some platinum ones and now I have a misfire under load. When I leave it in park and rev it up it is very healthy, I can't notice any misfire. Only under load do I get this miss. I have new aftermarket coil packs and wires. What else could it be? Can the cam and crank sensors going bad cause this? I'm running out of things that I can replace in the ignition system...
--------------------
1998 Mark VIII LSC Black/Graphite
2005 Pontiac GTO Silver/Black
Posts: 578 | From: north bay | Registered: Jul 2004
| :
|
|
TRIXSNK
¯
Member # 2844
|
posted
What did you gap the plugs to?
--------------------
9 Sec EVO 9 is GONE!
New project in the works.......
Posts: 3740 | From: Bay Area | Registered: May 2003
| :
|
|
bunchmyfunky
CAFords Drag Racing Mod
Member # 360
|
posted
What are the plugs gapped at? You might want to close the gap some and see if that helps.
Posts: 2433 | From: Vacaville | Registered: Jul 2001
| :
|
|
1fast281
¯
Member # 4670
|
posted
Factory gap .54
--------------------
1998 Mark VIII LSC Black/Graphite
2005 Pontiac GTO Silver/Black
Posts: 578 | From: north bay | Registered: Jul 2004
| :
|
|
bunchmyfunky
CAFords Drag Racing Mod
Member # 360
|
posted
Close the gap, that should fix your problem
[ August 26, 2004, 02:49 PM: Message edited by: bunchmyfunky ]
Posts: 2433 | From: Vacaville | Registered: Jul 2001
| :
|
|
1fast281
¯
Member # 4670
|
posted
What gap would you reccomend? The screamin demon coil packs came with instructions to gap it at .60 .
--------------------
1998 Mark VIII LSC Black/Graphite
2005 Pontiac GTO Silver/Black
Posts: 578 | From: north bay | Registered: Jul 2004
| :
|
|
bunchmyfunky
CAFords Drag Racing Mod
Member # 360
|
posted
Try .44 or so
Posts: 2433 | From: Vacaville | Registered: Jul 2001
| :
|
|
Hungry Hippo
¯
Member # 537
|
posted
.045" ![[Wink]](wink.gif)
also make sure all the wires are on tight
--------------------
05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
| :
|
|
1fast281
¯
Member # 4670
|
posted
Well to tell you guys the truth I don't think the gap is the problem because it was fine with the platinum plugs.
--------------------
1998 Mark VIII LSC Black/Graphite
2005 Pontiac GTO Silver/Black
Posts: 578 | From: north bay | Registered: Jul 2004
| :
|
|
bunchmyfunky
CAFords Drag Racing Mod
Member # 360
|
posted
quote:
Originally posted by 1fast281:
Well to tell you guys the truth I don't think the gap is the problem because it was fine with the platinum plugs.
Then live with your miss.
Posts: 2433 | From: Vacaville | Registered: Jul 2001
| :
|
|
Joooestang66
¯
Member # 2828
|
posted
Id recommend ditching the copper plugs and installing Motorcraft FACTORY plugs. Youre not going to gain or loose horsepower with spark plugs, atleast with a N/A engine.
Posts: 581 | From: Elk Grove | Registered: May 2003
| :
|
|
TRIXSNK
¯
Member # 2844
|
posted
quote:
Originally posted by bunchmyfunky:
quote:
Originally posted by 1fast281:
Well to tell you guys the truth I don't think the gap is the problem because it was fine with the platinum plugs.
Then live with your miss.
Sorry but ![[Roll Eyes]](rolleyes.gif) lol...
Why not just try it out first.....it's a free fix.
Oh well that's why this is just the "advice" section.
--------------------
9 Sec EVO 9 is GONE!
New project in the works.......
Posts: 3740 | From: Bay Area | Registered: May 2003
| :
|
|
ihatethesesns
¯
Member # 684
|
posted
So you just got the miss after you installed the plugs? You may want to pull them and take a look at them, I put a new set in and had a crack in one of the plugs which caused it to miss.
--------------------
" Friends come and go but enemies Accumulate"
'Fight Crime Shoot First'
Posts: 1283 | From: Toy Shop | Registered: Dec 2001
| :
|
|
Email this post to someone!
Printer friendly view of this Ford topic
