Long cranking

[TomZR1]

I have 90 zr1 whenever i go to start it it takes a good 3 seconds is that normal,any info would be appreciated .

[Kevin]

perfectly normal.

[Vetman]

yes, mine too. I believe the ECM controls the slow start. Normal

[We Gone]

It has to find #1 before it starts

[Schrade]

Originally Posted by We Gone

It has to find #1 before it starts

Where's Steve here - is this something that's coded into the ECM? Can you explain this a little more in depth?

This is pretty interesting here...

Does Marc's code over-write for hard hot re-starts have anything to do with the 'find #1 before starting' code?

Mine is the first fuel injected car I've ever owned, that didn't start immediately. I usually keep them tuned well, and mine is pretty cleaned up now (32k), and does start marginally faster with Marc's Memory / Calibration Module here...

[Mystic ZR-1]

That "rubber liner thingy"? I've had 3 C4s 2
from new and didn't have one? Do the later cars,
91 on, have them? Often wondered what to do with my quarters...

[Dynomite]

Originally Posted by Mystic ZR-1

That "rubber liner thingy"? I've had 3 C4s 2
from new and didn't have one? Do the later cars,
91 on, have them? Often wondered what to do with my quarters...

I do not know if the Rubber Liner Thingys are stock or not....but.....you can get them on Ebay....but it will cost you 64 quarters

Rubber Liner Thingy on Ebay

I kind of like to spin the crankshaft with the starter a bit as the oil circulates just a tad before it revs up.....I forget exactly when the oil pressure starts showing on the gage but I think I recall oil pressure showing a tad when doing a compression test after a few crankshaft revolutions.....

[We Gone]

Originally Posted by Mystic ZR-1

That "rubber liner thingy"? I've had 3 C4s 2
from new and didn't have one? Do the later cars,
91 on, have them? Often wondered what to do with my quarters...

Mid America also has them

http://www.mamotorworks.com/Corvette...ction-603188-1

[We Gone]

My statement is a very abbreviated, It refuses section in the FSM 6E3-A-22 thru 29 and 6E3-A-52 & 53 basically when cranking the ECM must see the Camshaft sensor at #1 before it starts. I could be wrong but that's how I read it.

[Schrade]

Originally Posted by We Gone

My statement is a very abbreviated, It refuses section in the FSM 6E3-A-22 thru 29 and 6E3-A-52 & 53 basically when cranking the ECM must see the Camshaft sensor at #1 before it starts. I could be wrong but that's how I read it.

Thanks! You know more than I do here, and I'd sure like to learn more on it...

Looks like book time. Again. Still. Forever...