Car won't idle

toyman · Sep 7, 2009

sgarrelts01 said:
i typed in the part number on the receipt from summit and this is what they gave me.

COMP Cams CL31-246-3 - COMP Cams Xtreme Energy Cam and Lifter Kits - Overview - SummitRacing.com

I'm not so sure that it's the correct cam. What is the firing order? It should be 1-3-7-2-6-5-4-8.

Here's the Comp Cam link

COMP Cams - Cam Details

I believe the reference to C.I is a carburated application otherwise they usually indicate C.I. and EFI

sgarrelts01 · Sep 7, 2009

Since 94 mustangs are roller and i put in a Flat Tappet what does that mean.

I am lost now.

Should i just buy a roller cam and lifter set or will what i have be fine for right now.

I guess i don't know what you mean.

as far as the firing order, I believe i had it at the one you listed but it kept back firing an wouldnt start an fouling plugs an ****.

But then on the cam card that came with the cam it listed a different firing order which was something different, and when we changed it to that firing order it stopped back firing an started an stopped fouling out plugs.

toyman · Sep 7, 2009

What part # does the warranty card show? It should give the Serial, Part and Grind numbers.

sgarrelts01 · Sep 7, 2009

toyman said:
What part # does the warranty card show? It should give the Serial, Part and Grind numbers.

Will have to post it tomorrow because the card is with my car in my step dads garage.

It seemed to run good today when we changed the timing. What is the worst that can happen with that cam. I am asking being i really don't know.

Because i have a flat tappet cam an lifters. I would think if i matched roller with tappet it would make a problem.

But if the cam is what makes the firing order, an if i go off the firing order on the warranty card thing, wouldn't i be fine.

toyman · Sep 7, 2009

sgarrelts01 said:
Will have to post it tomorrow because the card is with my car in my step dads garage.

It seemed to run good today when we changed the timing. What is the worst that can happen with that cam. I am asking being i really don't know.

Because i have a flat tappet cam an lifters. I would think if i matched roller with tappet it would make a problem.

But if the cam is what makes the firing order, an if i go off the firing order on the warranty card thing, wouldn't i be fine.

I honestly don't know. There may be differences in the push rod lengths between roller rocker and flat tappet lifters. Is the firing order 1-5-4-2-6-3-7-8? That was the firing order up to about 1984.

sgarrelts01 · Sep 7, 2009

toyman said:
I honestly don't know. There may be differences in the push rod lengths between roller rocker and flat tappet lifters. Is the firing order 1-5-4-2-6-3-7-8? That was the firing order up to about 1984.

Yup that was the firing order i used.

I didn't use stock push rods, i got push rods that matched what i had.

toyman · Sep 8, 2009

sgarrelts01 said:
Yup that was the firing order i used.

I didn't use stock push rods, i got push rods that matched what i had.

To be on the safe side I would phone Comp Cams Tech support tomorrow.

Their number is 1-800-999-0853.

sgarrelts01 · Sep 8, 2009

oh the block i used wasn't out of a 94 mustang. It was a old truck 302. It wasn't a roller block.

toyman · Sep 8, 2009

sgarrelts01 said:
oh the block i used wasn't out of a 94 mustang. It was a old truck 302. It wasn't a roller block.

Okay, so you are probably fine. Now I'm wondering how the PCM knows there is a different firing order so it can pulse the injectors in the correct order or are you carburated?

sgarrelts01 · Sep 8, 2009

toyman said:
Okay, so you are probably fine. Now I'm wondering how the PCM knows there is a different firing order so it can pulse the injectors in the correct order or are you carburated?

its still fuel injected.

The fuel seems to be fine.

I got a tune from JMS and gave them the cam an the number an all that ****.

Car won't idle

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