bad stutter at 2000 rpm, only power key on

[Spanky1965]

Picture 1 shows how the pin tool can be slipped through the weather pack seal and into contact with the connector pin. Note that the seal is not pierced by the pin. The pin is slipped between the soft sealing ring and the wire. Pin C17 is on the green ECM connector. The wire is pink on ’90 LT5’s and pink with a black stripe on ’91 – ‘95’

should have read this first...LOL

[Spanky1965]

OK, so I did that and everything works, even did it when running and checked the vacumm to the comp, all good. so one question, instead of removing the system why couldent you just run with it grounded"?

[Dynomite]

Originally Posted by Spanky1965

OK, so I did that and everything works, even did it when running and checked the vacumm to the comp, all good. so one question, instead of removing the system why couldent you just run with it grounded"?

Ha....I am trying to learn..being a good student and you are saying you blew the ECM fuse...I did not know there was such a thing

Why would you now try to "jerry rig" your 2000 rpm stutter when you have Jeffvette, tccrab, and Kb7tif working on it for you.....believe me...they will get it running like it is suppose to

[Spanky1965]

sorry not trying to do that, I was only asking since I have seen other posts about removing it...anyway so does it sound like injectors to you guys? and if so, what do I buy?

You have a fuel pressure gauge? Voltmeter?

[Spanky1965]

yes and yes

What is your fuel pressure drop when you cycle the key off? Pressure bleed off rapidly?

And start ohming your injectors.

[Spanky1965]

ohming the inj??

Yes, taking a ohm reading of the injectors. The coil on the inside.

[Spanky1965]

I need to rmove plenum for that? if so why not just change them?