[Shotimes] uncontrolled idle

[Kevin & Cheryl Airth]

James:
 I have a unsteady idle from the LPM. Remove it check the idle and then
reinstall. See what changes. The cylinder balance test instructions are on
the EEC IV test page.
http://dalidesign.com/hbook/eectest.html
.
.



> Last Monday, the '95MTX started running poorly.
>
> Like, no power, poor idle control, etc.
>
> I threw in a set on new plugs (Autolite #AAP 3924, they look the same as
the
> Motocraft #AGSP 32PP's that came out, are they?) and a set on new OEM
wires.
> Noticed that there was no oil in the plug wells.  Also put on a newer and
> clean IAB valve and cleaned the trottle body.  And also, just on general
> principles, I swapped the TPSensor, also newer.  Cleaned the 80mm MAF &
air
> cleaner.
>
> Well it runs a lot better now, but still has a real fast idle.  It is
still
> strong as ever on WOT and @ hiway speeds.  On start, the idle runs up to
> 2500 or so, and when cold will hardly ever come down below 1800. Pulses up
> and down.  Off the gas, it even pluses from hiway cruise.  When hot, the
> idle is down a bit, but it still pulses.  The speed sensor is OK because
the
> cruise control still works fine.
>
> Ran codes:  412 - "cannot control high rpm" ??
> 511- caused by my LPM
> 536 - "BOO Circut failure" ?? What is the BOO ?
> 538 - Dynamic...  I didn't mash the gas enough
> 539 -A/C... And yes, I didn't turn off the A/C
>
> Help!  Don't what sensor to replace next.  Or is it maybe a leaking
> injector?  If so, how do I run the cylinder balance test?
>
> regards, Jim White - greensho@crown.net