You can check timing with a timing light to see if it is advancing.
Fuel pressure is another manual check.
Vacuum leaks and EGR not closing are a couple more.
Is the CEL on? What codes?
You can check timing with a timing light to see if it is advancing.
Fuel pressure is another manual check.
Vacuum leaks and EGR not closing are a couple more.
Is the CEL on? What codes?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
timing at 0 degrees, fuel pressure is good, egr deleted, no vacuum leaks, i almost doused my engine in starting fluid trying to find any vacuum leaks. check engine light is on but its always one i presume i should find a obd1 scanner
Timing is set to 0*, but is it advancing when you check with timing light now?
Fuel pressure is good... good for what? What is the pressure?
CEL is on? But it has always been on? So there has always been a problem... what is the problem?
Starting fluid used to be a good medium to check for vacuum leaks but do to EPA changes in content it is now as worthless as tits on a bull. Use a propane torch similar to what is used to solder copper pipes. It is also safer and more precise to point at area of leak.
OBDI scanner could help. But finding what the issue is with your cable and getting it to record a data log so we can all see and help is a better choice.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
i think the laptop is just slow and ornery lol i wish i could figure that out but ive had no luck, ive done everything in my will to get the cable and computer to recognize one another.
fuel pressure is right around 13 psi
when checking timing with a lighth it stays at ) at idle if you rev it the spark advances and such.
Could EGR be the issue with the light? and are you saying stuff an unlight propane torch down there and hope something idles up or so?
Is the IAC moving?
Since you say the timing advances I'm assuming you're checking it without disconnecting the advance wire?? If you are, the timing should not read 0* at idle.
How about you jumper the ALDL pins and count the flashes and get the codes.
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