Ruff Idle ,Huge Loss of Power

[Tripler]

Originally Posted by Macroblock

Could you record some video/audio to demonstrate the symptoms you are experiencing?

Sorry , did not have time to do it . I will try make a vid tomorrow .
Hoping tapatalk lets me upload it .

[Tripler]

Well I knew it . I finally found the LAGFF DVD set ... Hidden in an old briefcase .
;-)

[Macroblock]

I'm interested in hearing the engine to determine if all 8 cylinders are firing.

Did you verify that each HI-TENSION lead is providing a signal to its matching plug?
For example, if one coil is failing, 2 cylinders will go off-line.

Did you verify that each primary injector is getting a (-) signal from the ECM? One failing or partially failing injector or (-) signal to an injector will be very noticeable at low RPMs.

[Tripler]

Originally Posted by Macroblock

I'm interested in hearing the engine to determine if all 8 cylinders are firing.



Did you verify that each HI-TENSION lead is providing a signal to its matching plug?

For example, if one coil is failing, 2 cylinders will go off-line.



Did you verify that each primary injector is getting a (-) signal from the ECM? One failing or partially failing injector or (-) signal to an injector will be very noticeable at low RPMs.

Morning . Can you tell me what tools I need to do these tests ?
Lots to learn with these beasts indeed

Thanks

Mike


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[Tripler]

https://www.youtube.com/watch?v=fEXF...ature=youtu.be


When the tac reaches 2500/2700 rpm the engine surges to 3000

https://www.youtube.com/watch?v=io-9ucGfg4I

[XfireZ51]

The fans turn on when u first start the car?

[Tripler]

Originally Posted by XfireZ51

The fans turn on when u first start the car?

No ,,, that's the garage AC running . Only thing I hear is the Vacuum pump and its very tight and only runs for a second or 2 . I found a huge leak underneath the plenum and had to mod the rubber connection with my previous plenum pull . .

[32valvZ]

At the risk of sounding silly, and Im not trying to be condescending, but I didnt see anywhere in the thread where you had replaced or at least ohmed out your ignition wires or checked your coils.. unless I missed it... just a suggestion..

[Tripler]

Originally Posted by 32valvZ

At the risk of sounding silly, and Im not trying to be condescending, but I didnt see anywhere in the thread where you had replaced or at least ohmed out your ignition wires or checked your coils.. unless I missed it... just a suggestion..

Your not being silly sir . Pretty new to this . No I did not check the wiring and I have no experience as to how to do it . Learning as I go making lots of mistakes along the way .
Ordered more gaskets for a plenum pull . Getting pretty efficient at plenum pulls at least .
Looking into the emmisions first before another pull .
What equipment do I need to purchase to make sure the coils are working correctly .
Thanks for the input .
Lost without the help of you guys on this forum and Mr Haibeck


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[Tripler]

Just a quick list of what I have upgraded or changed so far .
New fuel filter , twice . First was full of rust so thought a second switch out would help grab any more crap.

Installed new serpentine belt

Found and fixed large vacuum leak under plenum

Installed a new IFPR

Installed new Accel Injectors

Installed new spark plugs

Car only gets High Octane non Ethanol Shell 91

That's the list so far

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