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View Full Version : Marc: "It's normal." (hesitation / off idle sag)


Schrade
01-10-2014, 02:29 PM
Yep - just got off the phone with him; was looking for the PCV crossover hose.

So we were talking about my mill, and I explained what I have goin' on here. I told him about the perfect idle, and how it hesitates around 1.6% TO.

He said (I'm paraphrasing here): they ALL do it; it's because of the ECM's operational coding. Yup - that's what he said, or something along those lines... He said if I fixed it, I'd be fixing 7,000 LT5's!!!

NORMAL.

...http://cdn.indusladies.com/forums/images/smilies/fainting-smiley.gif

http://www.smileyvault.com/albums/misc/smiley-vault-misc-075.gif


Looks like I have been chasing wild geese (and a few other things to boot here)

http://www.corvetteactioncenter.com/forums/attachment.php?attachmentid=2431&d=1296367714

Vettetech1, throttle position sensors are famous for off idle sag. They can be tested with a ohm meter to see if there is a dip in the resistance just as the sensor starts to move off idle. Its a potentiometer and varies the voltage to the ecm.

It's NORMAL. If Marc says it, I believe it.

Started in October, chasing wild geese. Holy COW!!!

http://www.smileyvault.com/albums/misc/smiley-vault-misc-075.gif

http://forums.scotsnewsletter.com/public/style_emoticons/default/th_run-around-smiley.gif



Well, get it all zipped up, check DataMaster to see what's there anyway, and DRIVE.

Last plenum bolt, found with seeing eye cam!!!

https://lh5.googleusercontent.com/--eckNHF3b0Y/UtAm9cZ3gyI/AAAAAAAADZ4/tLEhc71lrU4/s1280/HPIM7695r.JPG