A Few EF problems...are they related? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

the_scotsman · 09-24-2003, 00:48

I have a 94 EF Fairmont Ghia.
Recently, the ventilation has been stuck on windscreen vents, no matter which option I chooose on settings. This was a vacuum leak on my EA, I am assuming this is the same, I see a thin pipe dangling near the firewall, most likely the cause?
Also, the car was feeling low on power, took it to Ultratune, found the inlet manifold gasket was leaking, so I got that replaced, injectors removed and cleaned and a carbon flush was done, cost $440 all up.
On the drive home, seemed like it is still down on power a bit, anything obvious I shoud be checking? Does a vaccuum leak cause any performance issues? He said it should feel better in about a week once all the carbon is flushed out etc..
I'll have a go at the self diagnosis, but it seems a bit more comlicated than the EA one!

Any suggestions very welcome!
Thanks!

MADXF · 09-24-2003, 01:06

First thing, find the other pipe the one dangling from the firewall is suposed to be connected to. That will fix your vents problem, and could possibly be changing the MAP sensor output enough to stuff the engine management a bit.

Double check to make sure that the garage re-conected the spark-out plug, next to the distributor.
This wire is the one that allows the ECU to control the timing, if it is left unplugged it will be very low on power.

How does the car idle?

the_scotsman · 09-24-2003, 02:55

I found the vacuum leak problem. It was just a vacuum pipe had come off as expected.
Will see how she runs tomorrow on the way to work. Idle is pretty constant 750RPM, not the smoothest idle but not too bad.
I tried doing the diagnostic, only with a digital multimeter, but made it hard to follow, there were definately codes there though. Is the test led circuit the best way to go for this?

Cheers!

David

MADXF · 09-24-2003, 02:58

The LED test lamp is probably the easiest/cheapest way.

Where does your temp normally sit?

the_scotsman · 09-24-2003, 03:09

Temp always runs fine, never past halfway usually about 1/4 to 1/3 of the way.
The performance loss seems to have developed over the last week or 2.
No water in oil or anything, not using oil or water.
I will see what the LED diagnostic brings up when I get round to it. I might borrow an Oscilloscope from work over the weekend, get a good picture of whats happening.
Its so annoying, it just feels so slow, especially in 2nd. Also when I floor it, there is a small delay before it kicks down, and that doesnt help matters. I cannot afford to get any other checks or anything done just now, so DIY is the way I am going, I enjoy it anyway :) Well, most of the time!