Hesitation Help

marine_2003

Member

Jun 6, 2005

427

0

16

Lake County, FL

May 16, 2007

#1

• May 16, 2007

• #1

My buddy has a 91 GT with 30lb injectors and a matching 30lb mass airflow sensor, the car also has a small cam (not sure which one). He is having a problem with starting his car in the morning to go to work, and it has a hesitation problem. It will stutter, but if you let off then gun it, it will clear up. We have replaced the fuel filter, Idle Air, and Tps. Any suggestions??

Thanks

 

jammer84_03

New Member

Nov 30, 2003

468

1

0

May 16, 2007

#2

• May 16, 2007

• #2

plugs gapped right and plenty of spark? any type of aftermarket ignition system? does he have mods that requires that big of an injector?

 

TomCat

New Member

Apr 19, 2005

412

0

0

Utah

May 16, 2007

#3

• May 16, 2007

• #3

Why is he running 30# injectors? Can you give a complete mods list?

edit: beat me to it

 

jammer84_03

New Member

Nov 30, 2003

468

1

0

May 16, 2007

#4

• May 16, 2007

• #4

lol....

 

marine_2003

Member

Jun 6, 2005

427

0

16

Lake County, FL

May 16, 2007

#5

• May 16, 2007

• #5

no mods, they were on the car when he bought it. Stock ignition, plugs gapped right (as far as I know his mechanic did them with a tune up) Ford Racing Blue Wires. Flowmaster mufflers, off-road H-pipe. Stock air box with a K&N filter. No AC, no smog. New clutch and cooling fan. Shorty headers. Just trying to make sure i cover everything.

 

jammer84_03

New Member

Nov 30, 2003

468

1

0

May 16, 2007

#6

• May 16, 2007

• #6

injectors are the problem...way to big for the application

 

marine_2003

Member

Jun 6, 2005

427

0

16

Lake County, FL

May 17, 2007

#7

• May 17, 2007

• #7

so what would his best bet be? 19's 24's?

 

marine_2003

Member

Jun 6, 2005

427

0

16

Lake County, FL

May 17, 2007

#8

• May 17, 2007

• #8

We have a new problem with this. Driving down the road the running the car if you let off after first the check engine light will come on, but if you tap the gas or the brakes it goes off. Any help?

 

A

ARTTII

New Member

Jan 13, 2004

272

2

0

Detroit, MI

May 17, 2007

#9

• May 17, 2007

• #9

Pull codes!!! Should always be first step with a problem like this, codes can be stored without the CEL being on...

 

marine_2003

Member

Jun 6, 2005

427

0

16

Lake County, FL

May 17, 2007

#10

• May 17, 2007

• #10

he is going to do that tomorrow