ok so this is the deal, my car switchs from half to full power when it wants , this is what iv done

NEW***
MAFS
Coils
Plugs
Wires
Fuel filter(40psi of pressure after filter)

and it still does could it be a ECU it i doubt it detinaited becouse it switches, with half power it backfires alot thanks for your time and thought any?'s


Ohh PS 88 se non turbo

 

it *might* be going into limp mode....

But it could be many things, a little more info would be great, such as, is it revving up fine when its at "half" power, its just a little slow....does it buck or run rough when its "half power".......just exand on the problem a bit more.

 

Start by blinking the error codes.
Check & re-secure the grounds, especially the cheezy clip on the firewall.
Clip an ohmmeter on the TPS & check for a smooth sweep in values as you work the plunger.

 

no it buck from full to half then it stay a constint half nice and smooth but half power and sucks alot cus the rpms take days to go up

 

and i was wondering what is the symptoms of a bad ECU?

 

is this a bogging problem around 3800 rpm? because i am having the same problem, and i CANT find my ecu! where is it?

 

Primary injector wire falling off?

 

bad timing? could be bad grounds? could be a number of things...spark plugs? wires?

ok: edit, not plugs or wires...

 

well my freind ahd one of those ground kits so i put it on and it didnt help, and no bogging just a solid all rpms. i cant figure it out!!! does it sound like a ecu.??? im sorry if you dont understand just ask some ?'s ill answer you

 

I had the 3800 rpm bogging problem, and it was grounding

 

when the idal if you let off the gas and try to let it idal it dies out if you dont keep the rpms up and it wont start unless you spray starting fluid/ gas in the intake.

 

have you checked the error codes like sureshot asked you yet?

 

no how do i do that, a diognostics machine im guessnn right?

 

Go to the FSM link in sureshot's sig

 

I'm having the same problem and I know what's causing it: my ECU is not telling one of the primary injectors to fire. I gave the damn shop $750 to install a new injector before they figured that out, so when they told me they wanted to replace the ECU for another $950, I told them I'd just do it myself. (I also returned their p.o.s. Grand Marquis loaner smelling pretty bad... apparently beer explodes in a car trunk on a hot day ;-).

My engine's not throwing any error codes. You should check yours. After that, check the pins on the ECU that go to the primary injectors (pinout is in FSM).

Also, don't drive the car around too much like that. I limped the car home from the shop, and although the temperature gauge was doing just fine, there was smoke coming from under the hood when I got home. Hope I don't replace the ECU and then figure out I blew a seal or something...

 

Hey dude Replace the ecu, I had this problem a few years back it drove me crazy, It is the pins in the board where the plugs go in at you have a broken board, Trust me .I do have n326 ecu`s if thats what you need.10.00 plus freight

 

thanks for the info guys bump

 

bump still open ears