Surging??? - Northern California Ford Owners

This is topic Surging??? in forum Tech Talk at Northern California Ford Owners .

To visit this topic, use this URL:
https://californiafords.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=6;t=021440

Posted by BLK 90 GT 5.0 (Member # 7534) on :

Ok I got a 90 fox that is surging It does it realy bad in the morning when cold and when I try to drive it kinda putts and sometimes it surges alil when warmed up. I already changed intakes and the gaskets tb gaskets iac and gasket egr gasket ignition module and tried a few distribuers also tried a differnt tps I also cleaned maf and tried a stock one it has a simi new fuel pump bout 2 yrs old I tried to bump timeing nothing seems to work. But if I advance timing hella far like past 20 or if I create a vacume leak it idles fine this is crazy sh*@ [Mad]

[ January 05, 2010, 04:20 PM: Message edited by: BLK 90 GT 5.0 ]

Posted by 86 T TOPS (Member # 8855) on :

check your maf sensor might need to be cleaned up

Posted by BLK 90 GT 5.0 (Member # 7534) on :

quote:
Originally posted by 86 T TOPS:
check your maf sensor might need to be cleaned up

Already cleaned it and tried a stock one

Posted by 50 Deep (Member # 6216) on :

Try doing the base idle reset. I kinda had the same issue and that's what fixed it

Disconnect the iac and start the car. Play with the idle set screw until the car will idle on its own without dying. then set the idle to the lowest possible setting. Shut off the car. Reconnect the iac & Disconnect the Neg terminal on the battery for 3-5 mins. Start the car back up and let it idle for a few minutes and go drive it. See if that helps.

Posted by 50Reasons (Member # 6452) on :

Sounds like a bad ecu ( computer )

Posted by BLK 90 GT 5.0 (Member # 7534) on :

quote:
Originally posted by 50Reasons:
Sounds like a bad ecu ( computer )

That's what I'm starting to think. I mest with the car alil lastnite reset base idle thought I had it fixed it was running fine so I drove it to work 2day and it started again [Mad]

Posted by BLK 90 GT 5.0 (Member # 7534) on :

So I set the tps tonite with a volt meter and its still fu@%ing surging

Posted by Camara90 (Member # 134) on :

so when you create a vacuum leak and advance the timing it is ok? The vacuum leak will lean it out some because the engine is sucking in air that is not metered and not adding the fuel it needed for that air. What do the plugs look like without the vacuum leak?

Posted by Camara90 (Member # 134) on :

Also clean your salt and pepper plugs.

Posted by BLK 90 GT 5.0 (Member # 7534) on :

quote:
Originally posted by Camara90:
so when you create a vacuum leak and advance the timing it is ok? The vacuum leak will lean it out some because the engine is sucking in air that is not metered and not adding the fuel it needed for that air. What do the plugs look like without the vacuum leak?

Idk I haven't pulled the plugs yet but I'm gonna today

Posted by BLK 90 GT 5.0 (Member # 7534) on :

I think I fixed it did sum tinkering and its running coo

Posted by Duncan Motors (Member # 7045) on :

i know im far but if you bring it down ill hook you up ! you bough that intake off me right.

Posted by BLK 90 GT 5.0 (Member # 7534) on :

Ok so I thought I hadf the problem fixed well for the most part it is it only surges when cold like at first start of the day any body know what it could be. It still has all the power

Posted by 1HaTCheD5LiTEr (Member # 8269) on :

One link is to a common problem which are the 10 pin connectors and the other link is to the procedure for reseting the base idle...hope you fix your problem

http://www.fordfuelinjection.com/?p=85

http://www.moddedmustangs.com/forums/5-0-mustangs/123164-mustang-idle-surge-base-idle-reset.html

Posted by BLK 90 GT 5.0 (Member # 7534) on :

quote:
Originally posted by 1HaTCheD5LiTEr:
One link is to a common problem which are the 10 pin connectors and the other link is to the procedure for reseting the base idle...hope you fix your problem

http://www.fordfuelinjection.com/?p=85

http://www.moddedmustangs.com/forums/5-0-mustangs/123164-mustang-idle-surge-base-idle-reset.html

Thanx for the links ima clean the salt and pepper shakers when I get a chance also clean the other connections to

Posted by Bigjerry916 (Member # 8787) on :

sell it and put the money into the notch

Posted by mpt365 (Member # 9710) on :

so what happened? did it work?

Posted by BLK 90 GT 5.0 (Member # 7534) on :

quote:
Originally posted by mpt365:
so what happened? did it work?

Haven't tried it yet but ill be sure to let u know. And to bigjerry916 I thought bout sellin a couple times but ill never get what I put into it

Posted by 95331StrimVert (Member # 6250) on :

Try disconnecting your EGR vacuum tube. Plug the tube with a golf tee. See if that helps. Just, curious. I had real bad part throttle surging and bucking issue and this is what I did. The car drives so smooooth now. I know there is still some kind of issue with the EGR opening up to much and I will get back to that soon.

Fueled by Ford Mustang Owners
on CaliforniaFords.com