LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

New Opti installed - need to test

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Old Sep 14, 2019 | 06:36 PM
  #46  
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Re: New Opti installed - need to test

I’ll download the file in the morning when I can access my PC.
Old Sep 15, 2019 | 12:38 PM
  #47  
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Re: New Opti installed - need to test

Great job on the fuel pump hatch. Make a solid cover, use body sealer all the way around, use a lot of sheet metal screws to hold it tight. In a roll over, you don't want fuel seeping into the interior.

I assume that the fuel pump was what solved the problem.

Try and track down the source of DTC 11. It's a cut wire or a burned out bulb. That's the only code, but lack of the SES light will delay the discovery of a new problem that turns on the SES light to alert you.

Downloaded the data, set it up in the format I like. Quick look shows both fans running, even though coolant temp is only 185-deg. Fan switch? With just the quick review, everything else looks very good, at idle. Nothing jumps out as a problem. I will spend a bit more time to make sure.
Old Sep 15, 2019 | 03:06 PM
  #48  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
Great job on the fuel pump hatch. Make a solid cover, use body sealer all the way around, use a lot of sheet metal screws to hold it tight. In a roll over, you don't want fuel seeping into the interior.

I assume that the fuel pump was what solved the problem.

Try and track down the source of DTC 11. It's a cut wire or a burned out bulb. That's the only code, but lack of the SES light will delay the discovery of a new problem that turns on the SES light to alert you.

Downloaded the data, set it up in the format I like. Quick look shows both fans running, even though coolant temp is only 185-deg. Fan switch? With just the quick review, everything else looks very good, at idle. Nothing jumps out as a problem. I will spend a bit more time to make sure.
the car sat for 2.5 years and when i started it a lot of dash lights not working including SES, also my wipers were stuck in park mode so they would pause straight up and down and swipe off the windshield, but i fixed that. the dash lights are next on my list after i get back on the road. still need to make the gas pump cover, i was cutting a template on my laser last night. I wish it was one that would cut metal.

Thanks again Fred
Old Sep 17, 2019 | 01:24 AM
  #49  
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Re: New Opti installed - need to test

Originally Posted by Injuneer

Try and track down the source of DTC 11. It's a cut wire or a burned out bulb. That's the only code, but lack of the SES light will delay the discovery of a new problem that turns on the SES light to alert you.

Downloaded the data, set it up in the format I like. Quick look shows both fans running, even though coolant temp is only 185-deg. Fan switch? With just the quick review, everything else looks very good, at idle. Nothing jumps out as a problem. I will spend a bit more time to make sure.
like i said a lot of lights not working in my instrument panel, i took it off tested all the bulbs and they were all good, so i cleaned all the corroded contacts and got them all working but now the brake light is on, does this show up in the computer log?

Thanks!



Old Sep 17, 2019 | 09:03 AM
  #50  
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Re: New Opti installed - need to test

Scan9495 will read the ABS computer (EBCM) on cars WITHOUT traction control. You have to select that system to scan it. There should be a tab for it. Will also read SIR (airbag) system.
Old Sep 17, 2019 | 12:04 PM
  #51  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
Scan9495 will read the ABS computer (EBCM) on cars WITHOUT traction control. You have to select that system to scan it. There should be a tab for it. Will also read SIR (airbag) system.
i think this has traction control, because i one time spun the tires in the rain and i remember the traction light came on, also the holes for the "abs inop" & "skip shift" don't have sockets for bulbs.

so is there a way to turn the brake light off without pulling the bulb? (this would be for a temporary time)
Old Sep 17, 2019 | 12:25 PM
  #52  
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Re: New Opti installed - need to test

Does the service parts label have RPO “NW9” on it? Is there a black device sitting on top of the driver side valve cover, with the throttle cables attached and a silver servo motor? Both those would indicate traction control (ASR).

I think it should have an ABS INOP bulb whether it has traction control or not. No SKIP SHIFT bulb on a car with auto trans.

The “BRAKE” light comes on for two reasons - 1) when the e-brake handle is pulled up; 2) when the differential pressure switch on the side of the ABS motor block sense a significant difference in pressure between the front and rear hydraulic circuits. The differential pressure switch connects to the EBCM computer (EBTCM with ABS + ASR).
Old Sep 17, 2019 | 05:33 PM
  #53  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
Does the service parts label have RPO “NW9” on it? Is there a black device sitting on top of the driver side valve cover, with the throttle cables attached and a silver servo motor? Both those would indicate traction control (ASR).
No RPO “NW9” on it
Old Sep 30, 2019 | 02:30 AM
  #54  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
Great job on the fuel pump hatch. Make a solid cover, use body sealer all the way around, use a lot of sheet metal screws to hold it tight. In a roll over, you don't want fuel seeping into the interior.

I assume that the fuel pump was what solved the problem.

Try and track down the source of DTC 11. It's a cut wire or a burned out bulb. That's the only code, but lack of the SES light will delay the discovery of a new problem that turns on the SES light to alert you.

Downloaded the data, set it up in the format I like. Quick look shows both fans running, even though coolant temp is only 185-deg. Fan switch? With just the quick review, everything else looks very good, at idle. Nothing jumps out as a problem. I will spend a bit more time to make sure.
Fred can you look at this scan:
http://vcs-llc.net/9495scan/DLOG-trans-2019Sep29.csv
I started from cold and did a drive in o-drive on a small trip. normally i drive the car doing manual shifting. but for this scan i let the car shift its self.
thanks for your help.
PS i don't know why when i first got it running the fans would start running a minute after start it cold, but for some unknown reason after i fixed the dash lights, it fixed its self and is working normally.
Old Sep 30, 2019 | 09:53 AM
  #55  
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Re: New Opti installed - need to test

What am I looking for in the log - is there a specific problem?

I'm not all that familiar with the auto trans.
Old Sep 30, 2019 | 12:38 PM
  #56  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
What am I looking for in the log - is there a specific problem?

I'm not all that familiar with the auto trans.
just anything that doesn't look right, it sat for about 3 years, the factory fuel pump when out, i just went through the opti. for years i always thought it was running rich, but my auto guy i had at the time said emissions are good. i had to clean up all the corrosion on the dash lights and fuses in the fuse box thats when i had the dtc 11.

it seems to be running better than it has in years, i can now red line it, where as before it would cutout and spudder.
just a look at how well the engine is running and fuel system.

Thanks again!
Old Sep 30, 2019 | 04:34 PM
  #57  
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Re: New Opti installed - need to test

The log you posted is for the TRANSMISSION, not the engine. I do not know enough about the 4L60E to comment. Never owned one, never worked on one, and I think this is the first time I have seen a Scan9495 log for it.
Old Sep 30, 2019 | 04:55 PM
  #58  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
The log you posted is for the TRANSMISSION, not the engine. I do not know enough about the 4L60E to comment. Never owned one, never worked on one, and I think this is the first time I have seen a Scan9495 log for it.
i thought it was the engine at least that is what i saw on the screen, was that whole trip lost?
Old Sep 30, 2019 | 05:03 PM
  #59  
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Re: New Opti installed - need to test

The name of the file has the word "trans" in it.... it is just a trans log. There is only on tab in the file, and its is all trans data.
Old Sep 30, 2019 | 08:40 PM
  #60  
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Re: New Opti installed - need to test

Originally Posted by Injuneer
The name of the file has the word "trans" in it.... it is just a trans log. There is only on tab in the file, and its is all trans data.
i found it here it is:

http://vcs-llc.net/9495scan/DLOG-Save-2019Sep29.csv

Thanks!!!



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