fuel & ignition problems?
Thread Starter
Cruising
Joined: Jan 2008
Posts: 10
Likes: 0
From: Goldsboro NC
fuel & ignition problems?
hey everyone,
ok so i just installed NGK iridium IX plugs and MSD wires, the computer had a blast trying to reset, but my question is after i did the install the RPMs at idle are very sporadic and drop to about 400 and back up again, has anyone else had a problem when they did similar upgrade? also on a side note is there a block on the fuel line when disconnected? since there is no return line i thought when i took off the braided fuel line from the rails it would shoot fuel everywere, not a drop!
Any help would be appreciated
ok so i just installed NGK iridium IX plugs and MSD wires, the computer had a blast trying to reset, but my question is after i did the install the RPMs at idle are very sporadic and drop to about 400 and back up again, has anyone else had a problem when they did similar upgrade? also on a side note is there a block on the fuel line when disconnected? since there is no return line i thought when i took off the braided fuel line from the rails it would shoot fuel everywere, not a drop!
Any help would be appreciated
Le Mans Master
Joined: Jul 2002
Posts: 7,370
Likes: 8
From: Slave to the evil empire
Cruise-In V Veteran
St. Jude Donor '04
The first thing I would check is to make sure all of the plug wires are tight, if they are then ditch the MSD wires and go back to factory.
I personally had a problem with MSD wires on my 03 Coupe and I know I have read on this forum several other members who had problems after installing these.
As far as the fuel issue goes, if your car has sat overnight before disconnecting the fuel line, you may not get any fuel out of the line when disconnecting it.
I personally had a problem with MSD wires on my 03 Coupe and I know I have read on this forum several other members who had problems after installing these.
As far as the fuel issue goes, if your car has sat overnight before disconnecting the fuel line, you may not get any fuel out of the line when disconnecting it.
Thread Starter
Cruising
Joined: Jan 2008
Posts: 10
Likes: 0
From: Goldsboro NC
the spark plug and wire right behind the brake booster gave me the most trouble, and i didnt seat the boot all the way the first time and misfired, but i cleared the code took off the coil railing and i was able to push it all the way in, i checked the rest of the plugs and wires and they are all in properly. the idol is rough at start up but when i give it some gas it is really smooth so i think i might have to do with my fuel pump?
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
If you dis connected the battery to do the install-- the fuel trims were probably re-set and will have to re-learn the idle all over again--the more mods you have the longer it takes--can take up to 100 miles sometimes-------If you have a scanner -check you LTFT's at idle--
Tech Contributor
Joined: Jan 2007
Posts: 19,360
Likes: 1,128
From: Dyer, IN
hey everyone,
ok so i just installed NGK iridium IX plugs and MSD wires, the computer had a blast trying to reset, but my question is after i did the install the RPMs at idle are very sporadic and drop to about 400 and back up again, has anyone else had a problem when they did similar upgrade? also on a side note is there a block on the fuel line when disconnected? since there is no return line i thought when i took off the braided fuel line from the rails it would shoot fuel everywere, not a drop!
Any help would be appreciated
ok so i just installed NGK iridium IX plugs and MSD wires, the computer had a blast trying to reset, but my question is after i did the install the RPMs at idle are very sporadic and drop to about 400 and back up again, has anyone else had a problem when they did similar upgrade? also on a side note is there a block on the fuel line when disconnected? since there is no return line i thought when i took off the braided fuel line from the rails it would shoot fuel everywere, not a drop!
Any help would be appreciated
Ok, I'll ask.....why did you disconnect the fuel rail to change plugs and wires?
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