LT5 hesitation... - ZR-1 Net Registry Forums

Schrade · 08-12-2014

... which Marc says ALL LT5's have...

I still have a small amount of water in my tank - hardly noticeable, and it will all be out after a few more drives.

But something came to me here this morning, related to the residual water. When backing uphill, up my driveway, she struggles. Warmed up, it's not noticeable even.

But backing uphill cold, RPM's are probably right about 1.6% throttle. Which is where DataMaster showed the hesitation, and LOPE - from 1.6 - 2.4% TO. LIKE a vacuum leak, if throttle linkage is HELD at that throttle position... Like the pulsewidth / gas isn't sufficiently calibrated @ that throttle position...

Now I have a little water still mixed in. Even LESS gas, exacerbating the problem.

The water isn't the issue, because it will shortly be spent.

The issue is the pulsewidth calibration at that TO %.

Any thoughts here on increasing the pulsewidth at the 1.6 - 2.4% TO position???

08-12-2014	#1
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	LT5 hesitation... ... which Marc says ALL LT5's have... I still have a small amount of water in my tank - hardly noticeable, and it will all be out after a few more drives. But something came to me here this morning, related to the residual water. When backing uphill, up my driveway, she struggles. Warmed up, it's not noticeable even. But backing uphill cold, RPM's are probably right about 1.6% throttle. Which is where DataMaster showed the hesitation, and LOPE - from 1.6 - 2.4% TO. LIKE a vacuum leak, if throttle linkage is HELD at that throttle position... Like the pulsewidth / gas isn't sufficiently calibrated @ that throttle position... Now I have a little water still mixed in. Even LESS gas, exacerbating the problem. The water isn't the issue, because it will shortly be spent. The issue is the pulsewidth calibration at that TO %. Any thoughts here on increasing the pulsewidth at the 1.6 - 2.4% TO position??? __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]