please help.....have a constant miss over 5K, please read, i cant figure it out....
06-19-2002, 06:35 AM
#46
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Location: boxboro, MA, USA
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damn....plugs will be the LAST thing i check after the fiasco getting the new ones in with the FLP's, what a goddamn nightmare! they will be on the list, hope its something else (PLEASE PLEASE PLEASE!)
thanks donnie, and aloha!
brian
TTT before work!
thanks donnie, and aloha!
brian
TTT before work!
06-19-2002, 02:51 PM
#48
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Location: looking for a flow bench so Brook and I can race
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i didn't feel like reading the whole and i don'tknow if anyone mentioned this but...
defective new opti
defective installer ?
plug gaps
maybe ur timing is gettting retaded due to rea/false knock
false knock canbe fixed with LT4 KM
real knock - $5/gal of gas or rebuild- but your KM will bail you out so its not gonna hurt anything
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- Project N/A Underway-
Estimated time of completion: June 26th
AIM: SUPACHARGED22
defective new opti
defective installer ?
plug gaps
maybe ur timing is gettting retaded due to rea/false knock
false knock canbe fixed with LT4 KM
real knock - $5/gal of gas or rebuild- but your KM will bail you out so its not gonna hurt anything
------------------
- Project N/A Underway-
Estimated time of completion: June 26th
AIM: SUPACHARGED22
06-19-2002, 03:58 PM
#49
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Join Date: Jul 1999
Location: Winnipeg, Manitoba, Canada
Posts: 3,650
Usually the ignition module just blows. It doesn't die slowly.
I had 3 go on me and the car was driving perfectly fine up until it blew out. The voltage reg in my alternator was faulty and kept killing them.
What's your fuel psi at 5000rpm? Maybe buy a guage.
But try the $2 Wynn's can first.
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'93 Camaro Z28 Automatic with a ZL1 hood.
No bottle.
No blower.
383 cubic inch serving of horsepower...hold the rice please.
Thats all you need to know.
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Gripenfelter's Homepage
Disclaimer: The opinions expressed by me are not necessarily supported or indicative of the Government of Canada or any other Federal Employee.
[This message has been edited by Gripenfelter (edited June 19, 2002).]
I had 3 go on me and the car was driving perfectly fine up until it blew out. The voltage reg in my alternator was faulty and kept killing them.
What's your fuel psi at 5000rpm? Maybe buy a guage.
But try the $2 Wynn's can first.
------------------
'93 Camaro Z28 Automatic with a ZL1 hood.
No bottle.
No blower.
383 cubic inch serving of horsepower...hold the rice please.
Thats all you need to know.
ICQ: 23984221
Gripenfelter's Homepage
Disclaimer: The opinions expressed by me are not necessarily supported or indicative of the Government of Canada or any other Federal Employee.
[This message has been edited by Gripenfelter (edited June 19, 2002).]
06-19-2002, 04:17 PM
#50
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Join Date: Mar 2002
Posts: 20
Hey Gripenfelter,
Thanks for the post. On my 96 LT-1 I have run it with a fuel pressure gage attached to the fuel while driving under load. Fuel pressure is steady from 3000 RPM at WOT all the way up to the stumbling redline, about 39PSI. Good to know more about how the ignition module fails, that could save me some time and money.
What do you mean when you refer to the $2 Wynns solution? I like the idea of trying out something, if it does not mess anything up, that only costs $2 to try. Lots less than changing the Opti. Part of the point behind this thread is that I/we have read too many cases of LT-1 owners with similar problems replacing the Opti and still having the same problem. All are trying to do is replace parts that are actually bad.
Thanks for the feedback,
Bill H
Thanks for the post. On my 96 LT-1 I have run it with a fuel pressure gage attached to the fuel while driving under load. Fuel pressure is steady from 3000 RPM at WOT all the way up to the stumbling redline, about 39PSI. Good to know more about how the ignition module fails, that could save me some time and money.
What do you mean when you refer to the $2 Wynns solution? I like the idea of trying out something, if it does not mess anything up, that only costs $2 to try. Lots less than changing the Opti. Part of the point behind this thread is that I/we have read too many cases of LT-1 owners with similar problems replacing the Opti and still having the same problem. All are trying to do is replace parts that are actually bad.
Thanks for the feedback,
Bill H
06-19-2002, 09:58 PM
#51
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Join Date: Sep 2001
Location: boxboro, MA, USA
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yes, what is teh wynss solution? is it an engine cleaner that you pour in teh oil? i was advised that i didnt need it and that i should try the fuel system cleaner 1st. please let bill and i know!
brian
brian
06-19-2002, 10:23 PM
#52
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Join Date: Jan 2001
Posts: 608
Gripenfelter is right about the Ignition module, usually when they go car quits. Using the LT4KM is a waste of $$$, I would just desensitze the knock sensor by 50% and see if that helps. I would also lean towards programing out the spark retard and as long as your not hearing knock I wouldn't worry about it.
06-20-2002, 03:39 PM
#53
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Join Date: May 2002
Location: ARNOLD MO USA
Posts: 87
<font face="Verdana, Arial" size="2">Originally posted by sleeperZ96BT:
yes, what is teh wynss solution? is it an engine cleaner that you pour in teh oil? i was advised that i didnt need it and that i should try the fuel system cleaner 1st. please let bill and i know!
brian</font>
yes, what is teh wynss solution? is it an engine cleaner that you pour in teh oil? i was advised that i didnt need it and that i should try the fuel system cleaner 1st. please let bill and i know!
brian</font>
06-20-2002, 03:47 PM
#54
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Location: ARNOLD MO USA
Posts: 87
<font face="Verdana, Arial" size="2">Originally posted by HEATH:
</font>
</font>
HAVE TRIED ALMOST EVERYTHING AND NOTHINGS WORKED YET
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94 T/A LT1 A4
FEW MODS,KINDA QUICK
MISSIN BAD!
06-20-2002, 04:45 PM
#55
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Join Date: Apr 2001
Location: Webster, N.Y. USA
Posts: 5
For what it is worth I know of plenty of supposed Tranny problems (no upshift or WOT upshift, shudders) that turned out to be a faulty Fuel Pump and/or Filter. Pressure is only one side of the picture. If you know someone who has a Low Amp Probe and a Vantage/Fluke get the fuel Pump Scoped. ALso, restricted exhaust can do this. Can you loosen it up at the manifold? I know it won't run perfect but just enough so that excess pressure can blow out and try it. I have also seen intermitant coil problems drive people up a wall but this is consistant. I would also want to drive it with a Scanner hooked up and see what the readings are doing? Going lean, etc. Timing being retarded. You get the idea.
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For direct questions E-mail me subject: Tranny Problems
[This message has been edited by transfixleo (edited June 20, 2002).]
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For direct questions E-mail me subject: Tranny Problems
[This message has been edited by transfixleo (edited June 20, 2002).]
06-20-2002, 08:33 PM
#56
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scanner says its a-ok. weird thing i noticed....before when it was happening it would fire up quick and kid of hang around 500 rpms and would move up and down periodically ~200 rpms. now it pretty much fires up and hangs at 750-800 rpms and has a nice smooth idle. WTF is up with that? maybe ill go out tomorrow and WOT it and see if i still have the miss...wouldnt it beat all if it just up and left?!?!?!
brian
brian
06-23-2002, 07:09 PM
#58
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Join Date: Mar 2002
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Well I am going to do new plugs next weekend, and be sure ot use di-electric grease on both end of the plug wires. If that does not work then I suppose I'll do the Opti. Its a 96 with 65,000 miles and I did have a leaking h2o pump last. Hate to spend money just guessing (although lots of folks have had good results - so it's not a totally blind guess). If I get good results I will definitely post results.
Bill H
Bill H
07-03-2002, 07:25 AM
#60
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well, time to get this out of teh trenches. turned out i had an arcing plug wire. tightened all the wires and it didnt arc anymore. so i took her for a whip and she still did it, same damn time at the same place. installed the new ignition module also.......any suggestions??
brian
brian
