[WITootall]

Ok so I picked up this car and the cats were plugged so I eliminated them and put in O2 simulators. I swapped all the injectors, put in a new fuel filter, plugs and wires have been changed. The car starts fine and idels smooth but when its cold and I am driving it it has a hesitation and I have to baby the throttle. After a while it revs just fine and all is good. What is causing the delay? Could it be the regulator or maybe the fuel pump or what could the prob be?

Any help would be appreciated, thanks.

Jeff "WITootall"

 

[Rolling-Thunder]

simplest thing to eliminate first - is a dirty MAF sensor.

Walmart and local parts stores sell it. ( EDIT: MAF sensor spray cleaner )

You can also use a spray can of electronic contact cleaner.

 

[master486]

:zwthstpd:
And don't forget to reset the computer afterwards via the #15 fuse.

 

[tinman_72]

I'll second the dirty MAF. Mine did the exact same thing.

 

[Uncaged 94]

Or it could be that it is simply in "COLD" mode. The computer holds back the tim ing and such until the motor is at operating temp.. It's pretty much a failsafe to reduce possable engine damage and reduce wear. My T'bird won't "open up" until it's warmed up either.

 

[tinman_72]

My T'bird won't "open up" until it's warmed up either.

Sounds to me like you have a dirty MAF.:tongue:

 

[tlpru]

3rd....clean MAF

spray cleaners are no good....

get the TAMPER PROOF TORQUE bit

remove....gently clean with a cute tip.........

 

[Rolling-Thunder]

3rd....clean MAF

spray cleaners are no good....

get the TAMPER PROOF TORQUE bit

remove....gently clean with a cute tip.........

Spray cleaner IS good - in fact - they now make a spray can of MAF cleaner.

cleaning gently with a Q-tip is not advisable, due to the MAF sampling wires being very delicate - easy to damage.

Use a Q-TIP only as a last resort.



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