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Ed's Auto Parts - Mention MOTORGEN for a Discount!
Motorgen Sponsor: McLeod Racing
Motorgen Sponsor: American Muscle - Add style and performance to your Stang
Motorgen Sponsor: Hall Fabrication & Racing
Motorgen Sponsor: Injectors Plus - Performance Fuel Delivery Systems
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Old 10-06-2009, 08:53 AM   #41
94cobra69ss39694cobra69ss396 is offline
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Quote:
Originally Posted by enkeivette View Post
Yuppers. You might want to go a few steps colder if you have problems with pinging.

I run the... 3923s I think.
I believe the 3923 is what I installed in the Cobra.
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Old 10-06-2009, 09:05 AM   #42
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Like Phil suggested give Chris or Bruce over at Custom Built Motors a call (909) 390-9130 and tell them what happened and what you have done to the engine. Then see what plug and gap they suggest. Make sure you let them know that Phil Cooper referred you to them. It will only take you 10 minutes to call them and then you'll have an answer from the experts.
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Old 10-09-2009, 12:50 AM   #43
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Didn't catch your post till now Ron. But I ordered and installed a set of Autolite 5144 (colder version of 5245, OEM replacements). Gapped .040, OEM gap.

This ain't the problem. It did the same thing and this time intermittently while driving a little bit. I'm confident the plugs and wires are ok. The problem is packs or earlier. Tonight it did flash the CEL while on the freeway, then went out. There was no difference in driving response (poor) before during an dafter the CEL. Unfortunately we can no longer check out scanners.
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Old 10-28-2009, 01:31 AM   #44
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Well finally made it over to ls1z28's to do a Tech II scan, etc.

Fuel Pressure: ok at around 58~psi

Scan shows #8 missing quite a bit. Turns out to be an injector sticking. I think all he did was check that it was firing, probably a little bit of a continuity problem. Then I put in a can of Sea Foam in the tank (that stuff has got me out of a couple binds) and she purs like a kitten again. Many thanks Paul!

When I have spending money again, I'm going to get a flow matched set from our pals at InjectorsPlus.
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Old 10-28-2009, 09:28 AM   #45
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Old 10-28-2009, 09:45 AM   #46
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Quote:
Originally Posted by Vettezuki View Post
Well finally made it over to ls1z28's to do a Tech II scan, etc.

Fuel Pressure: ok at around 58~psi

Scan shows #8 missing quite a bit. Turns out to be an injector sticking. I think all he did was check that it was firing, probably a little bit of a continuity problem. Then I put in a can of Sea Foam in the tank (that stuff has got me out of a couple binds) and she purs like a kitten again. Many thanks Paul!

When I have spending money again, I'm going to get a flow matched set from our pals at InjectorsPlus.
How many miles do you have on your injectors?
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Old 10-28-2009, 11:17 AM   #47
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Glad to hear you have fixed the problem. Now BACK in the day, we used ATF to clean injectors.
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Old 10-28-2009, 12:11 PM   #48
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How many miles do you have on your injectors?

Miles from origianl owner plus 8~k. WELL below 100K, which is the service life of most GM parts.
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Old 11-13-2009, 01:31 AM   #49
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Default Need Help Diagnosing Poor Running
one of the easiest things to install and you need help?

you dont deserve that srt-4/.....gimme it to me
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Old 11-13-2009, 06:47 AM   #50
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Back in my supercharged mustang days I used to keep a code scanner in the car with me. It will tell you there is an issue and which cyylinder(s) are miss firing even before there is a check engine light.

I also run the NGK Iridium in the vette, but I ran the Autolite copper plugs in hte mustang.
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