Stumbling still...Thoughts? - ZR-1 Net Registry Forums

Paul Workman · 01-17-2008

Thanks, Tom.

I appreciate you taking the time to go over some of these items.

I Ω'ed the injectors cold - all read about 12Ω w/in .2-.3. Don't apologize...Should I Ω them hot as well (wondering 'out loud' as it were)?

The EGRs...I'll have a look. Good point.

One other item I just remembered...On a couple occasions, after backing off the secondaries - between gears - and accelerating again, I noticed a loud howl like the sound a 4-bbl carb makes when you stand on it - like the LT5 makes when the secondaries are open at WOT. There was a distinct loss of power. Backing off entirely and back on w/o calling the secondaries, and it sounded normal and power was back up to normal, and when calling the secondaries again, everything was normal. Something is sticking, and it screams "mechanical!"

There's only so much I can do w/o taking the top off. I was hoping to not have to do that until I was ready to powder coat the top end. But, then again, this is as much a familiarization/learning exercise for me as much as anything, Changing plug wires would require taking the plenum off anyway, I guess.

Well, I'll check the EGRs and we'll go from there.

Thank you and Jeffvette and the rest for your hand-holding. Honestly, I'm not new to mechanicals or electronics by a long shot. But, I've learned long ago that knowledge is power, and a lot cheaper than bulling in and phocking stuff up. After all, the LT5 is definitely different from the SBCs I'm used to!! So, I'm glad to take advantage of the expertise on this forum. I'm having a ball pouring over the FSM. (The only problem is it takes a long time to look something up b/c I keep getting sidetracked by discovering info on other things I had questions on...[sigh].)

I'll keep plugging away, with y'alls help, and let ya know what the final solution is.

P.

01-17-2008	#11
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Stumbling still...Thoughts? Thanks, Tom. I appreciate you taking the time to go over some of these items. I Ω'ed the injectors cold - all read about 12Ω w/in .2-.3. Don't apologize...Should I Ω them hot as well (wondering 'out loud' as it were)? The EGRs...I'll have a look. Good point. One other item I just remembered...On a couple occasions, after backing off the secondaries - between gears - and accelerating again, I noticed a loud howl like the sound a 4-bbl carb makes when you stand on it - like the LT5 makes when the secondaries are open at WOT. There was a distinct loss of power. Backing off entirely and back on w/o calling the secondaries, and it sounded normal and power was back up to normal, and when calling the secondaries again, everything was normal. Something is sticking, and it screams "mechanical!" There's only so much I can do w/o taking the top off. I was hoping to not have to do that until I was ready to powder coat the top end. But, then again, this is as much a familiarization/learning exercise for me as much as anything, Changing plug wires would require taking the plenum off anyway, I guess. Well, I'll check the EGRs and we'll go from there. Thank you and Jeffvette and the rest for your hand-holding. Honestly, I'm not new to mechanicals or electronics by a long shot. But, I've learned long ago that knowledge is power, and a lot cheaper than bulling in and phocking stuff up. After all, the LT5 is definitely different from the SBCs I'm used to!! So, I'm glad to take advantage of the expertise on this forum. I'm having a ball pouring over the FSM. (The only problem is it takes a long time to look something up b/c I keep getting sidetracked by discovering info on other things I had questions on...[sigh].) I'll keep plugging away, with y'alls help, and let ya know what the final solution is. P.