Intake install problems HELP HELP HELP!!

mustangt562

Member

Jan 22, 2004

226

0

16

Long Beach

Mar 2, 2004

#1

• Mar 2, 2004

• #1

Me and a buddy just installed the edelbrock performer and 30lb injectors with new calibration tube. My problem is that after the install i get idle surges. The timing was check and it is fine, and the fuel pressure was bumped to 42lb. We swapped out all the old and cracked hoses and installed a new pcv valve, and thermostat. When im driving it runs fantastic but when i get to a red light it surges then the engine cuts off. We check for vacume leaks and there are none. What the hell could be the problem? By the way the car is an aode.

 

Last5.0

Active Member

Nov 9, 2003

404

1

26

Mar 2, 2004

#2

• Mar 2, 2004

• #2

what type of MAF...a C&L?? Do you have a cold air kit or anything other than the stock intake tubing?? Try rotating your meter (clocking) and see if it helps.

 

zenboy99

Founding Member

May 12, 2002

2,212

0

47

Madison, WI

Mar 2, 2004

#3

• Mar 2, 2004

• #3

30lb injectors with stock heads and cam is your problem! I don't think you'll be able to lower the fuel pressure enough with 30's. A Ford tech guy told me I could lower fuel pressure to ~37psi without sacrificing the injectors spray. Why did you get 30's?

 

Last5.0

Active Member

Nov 9, 2003

404

1

26

Mar 2, 2004

#4

• Mar 2, 2004

• #4

when i bought my s-trim, the guy was putting his car back to stock (cobra) and traded me my maf and 24's for his 80mm and 42's. I didn't install the blower for about 3-4 months afterwards but ran the 42's and 80mm with the stock heads and cam with no problems. It did have a slight lope at idle, and some people thought it had a cam, but no other problems. So I don't think the 30's are causing the problem

 

final5-0

Mustang Master

Apr 6, 2003

6,817

12

79

DFW Texas

Mar 2, 2004

#5

• Mar 2, 2004

• #5

Last5.0 said:

when i bought my s-trim, the guy was putting his car back to stock (cobra) and traded me my maf and 24's for his 80mm and 42's. I didn't install the blower for about 3-4 months afterwards but ran the 42's and 80mm with the stock heads and cam with no problems. It did have a slight lope at idle, and some people thought it had a cam, but no other problems. So I don't think the 30's are causing the problem

Click to expand...

If I understand correctly you were using a ProM and mustangt562 is using a C&L. The different mafs might mean that a direct compairson is not valid but I'm not sure about it.

mustangt565

With the larger inj's I would think you would want to lower fuel pressure.

Just a couple of thoughts!

Later
Grady

 

red94fiveo

New Member

Apr 12, 2003

1,269

0

0

Wichita, KS

Mar 2, 2004

#6

• Mar 2, 2004

• #6

I agree that both the 30# injectors are probably a little on the big side, and you should lower you fuel pressure some more.

 

L

leathalsn95

New Member

Jan 29, 2004

15

0

0

Mar 2, 2004

#7

• Mar 2, 2004

• #7

Try rotating your meter (clocking) and see if it helps.[/QUOTE]



I Agree with this the 03 cobra had a recall that the enginge would surge at idle, the fix was to turn the mass air