ford ecu

[Programmer]

Brian,

A bad MAF can cause those exact problems--but don't overlook a plugged EGR,
O2 biased rich, low fuel pressure (and volume) and wrong ignition timing or
plug heat range. There's been issue to the use of K&N filters (and their
over-oiling) causing MAF contamination. If metered air is incorrect--fuel is
also incorrect.

Lyndon IPTECH
-----Original Message-----
From: digi <digi at saturn.terahertz.net>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: October 23, 1999 1:42 PM
Subject: ford ecu


>Hello,
>
>I have a 95 thunderbird, with the 4.6l V8 and auto tranny. Awhile ago, it
>started pinging like mad.. I poked around, having no way to retreive the
>codes from the ecu, I took it to a dealer (after, it seems like a shady
>one) to get it looked at, the MAF sensor had died.
>
>They happily charged me $300 to replace it, which I doubt they actually
>did. Before the MAF failure, the car had zero engine troubles and it NEVER
>pinged. The car has slight pinging during acceleration and heavier pinging
>when the transmission shifts, however, intermittently it slighly pings all
>the time.
>
>I've tried all kinds of fuel, every brand thats here, all grades, even ran
>it almost totally out of gas, filled it with some 93 octane fuel, put in a
>octane booster, it still pings.
>
>When its warm outside, it seems to do it more, and easier. Also, after
>having the vehicle serviced at the dealer I thought I noticed i quite
>severe power drop, but since I rarely drive it harder than a old lady, I
>wasnt really sure until I took it over to a skidpad to play with the
>suspention and it wouldnt even burnout anymore.
>
>Anyone have any ideas of what the problem could be? I lack badly in the
>area of electronically controled engine knowledge. Theres nothing that the
>ECM could do to reduce power like that, is there?
>
>Any thoughts would be appreicated..
>
>- Brian
>