LT -1 Data log diagnostics
Thread Starter
Teching In
Joined: Jan 2008
Posts: 10
Likes: 0
LT -1 Data log diagnostics Hello,
I have had some trouble with a '97 Camaro SS. SES lights and fixing one thing to discover another. I could post more about the issue but I'll give the cliff notes version.
Things fixed/replaced:
Fuel Pump
Fuel Filter
Fuel Pressure Regulator
Air Filter
PVC Valve and assorted vacuum hoses (Fixed P0171)
Throttlebody cleaned / new gaskets
Cleaned MAF
On order:
New front o2's
New plugs and wires
ICM
Coil
Current random code after heat soak: P0300
I went out and had a "normal" drive lasting about 3 miles and logged it. I was wondering if someone would mind looking over it to see if anything stands out as indicator.
The log file is below:
https://www.dropbox.com/s/m9btf49s8n...-1644.csv?dl=0
Thank you!
I have had some trouble with a '97 Camaro SS. SES lights and fixing one thing to discover another. I could post more about the issue but I'll give the cliff notes version.
Things fixed/replaced:
Fuel Pump
Fuel Filter
Fuel Pressure Regulator
Air Filter
PVC Valve and assorted vacuum hoses (Fixed P0171)
Throttlebody cleaned / new gaskets
Cleaned MAF
On order:
New front o2's
New plugs and wires
ICM
Coil
Current random code after heat soak: P0300
I went out and had a "normal" drive lasting about 3 miles and logged it. I was wondering if someone would mind looking over it to see if anything stands out as indicator.
The log file is below:
https://www.dropbox.com/s/m9btf49s8n...-1644.csv?dl=0
Thank you!
Biggest issue with those motors missfires is related to the optispark system. Replace the cap and rotor. Check water pump for leak and any oil in distributor. After that let us know.
Thread Starter
Teching In
Joined: Jan 2008
Posts: 10
Likes: 0
The water pump was also recently replaced and the Opti checked. The miss fire only occurs after driving the car and letting it set. Sometimes it appears that something gets heat soaked and that's when the misfire occurs.
The log is from a normal drive last night that threw no errors. I was hoping that the experience from this group would be able to look at it to see if anything jumped out as an issue.
Thanks again.
The log is from a normal drive last night that threw no errors. I was hoping that the experience from this group would be able to look at it to see if anything jumped out as an issue.
Thanks again.
Thread Starter
Teching In
Joined: Jan 2008
Posts: 10
Likes: 0
After a drive and it has time to sit, the miss that causes the P0300 is a severe miss. To the point the SES will blink. This doesn't happen every time lately and I'm wondering if its because its cooler outside.
Otherwise the car runs fine. Or feels like it runs fine.
Otherwise the car runs fine. Or feels like it runs fine.
Thread Starter
Teching In
Joined: Jan 2008
Posts: 10
Likes: 0
Funny you mention that, but last time I drove it the low coolant light came on. Between sitting and working on it I figured that I just hadn't topped it off. I lost some when I did the TB coolant bypass for example.
I will top it off tonight and keep track of it. Any other way to check this? That's going to suck if its truly the case.
I will top it off tonight and keep track of it. Any other way to check this? That's going to suck if its truly the case.
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I pulled the plugs after a hot soak and found #4 drenched in anti-freeze.
Head would not leak cold and running hot it must have been a small enough
leak to go out the tailpipe unnoticed. Being a '99 with over 200,000mi it got
KW block seal and I found it a new home via Craigslist.
Head would not leak cold and running hot it must have been a small enough
leak to go out the tailpipe unnoticed. Being a '99 with over 200,000mi it got
KW block seal and I found it a new home via Craigslist.
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