I bought this 86 last year in running condition, then it died soon after due to a fuel issue. Replaced filter, tank, sending unit, 255 pump, 60 lbs injectors, and TT 5.7 chip. Had it running rough with a misfire, so I replaced MAF with a LT1 3” translator (already had cold air intake). I also installed new spark plugs (NGK UR5 gapped at .025), wires (MSD), and tr6 ignition just to take care of the whole thing all at once. It ran a little rich so I replaced the o2 sensor which seemed to correct the issue. I drove it around, then decided to park it and focus on restoring the interior/floor pans. I was confident enough that the engine would start anytime I turned the key.
The car sat in my garage for about a month. The interior is completely stripped now, but I decided to drive it around just to dust it off and keep it running.
Turned the key > engine turns over no start.
Fuel pressure at 43 lbs, translator plugged in and set correctly, battery charged. Obviously assuming it’s spark.
Pulled out each lightly used/nearly new plug and they were oily and had a bit of carbon. Cleaned them all off and reinstalled.
Turn key > no start 3x
Walked away frustrated and came back again to turn the key and it started. Ran very smooth. Had a decent bit of smoke and smelled like oil, so I checked dip stick. Little high. I decided to just perform a routine oil change since the new seasons coming anyway.
Oil looked nice and dirty. No coolant. No metal.
Turned key, starts, and no smoke. AFR had me running a little rich around 12 idling, but I closed it down and decided to take it on a drive the following day.
So today I hop in, go to start the car, and no start. Engine turns over. I’m assuming my plugs are fouled out again. It’s been a longer process than described and I’m just exhausted from working on this project.
Every thread I come across just seems bombarded by people referring others to use the search bar, and never answers simple questions. When I do find answers the posts are from 2007 and photos don’t load, or the info is vague.
All my scan master readings line up as recommended. TPS is set at .42 IGN on and .44-46 while idling. IAC ran a little high around 30 at idle. Nothing else sticks out.
I feel like if I continue to remove the plugs and turn it off again it’ll repeat the process. What would you guys do going forward? What can I test that may cause this consistent no start issue? I’m going to be attacking my spark system tonight, I just feel like I need some feedback from someone telling me I’m not wasting my time.
The car sat in my garage for about a month. The interior is completely stripped now, but I decided to drive it around just to dust it off and keep it running.
Turned the key > engine turns over no start.
Fuel pressure at 43 lbs, translator plugged in and set correctly, battery charged. Obviously assuming it’s spark.
Pulled out each lightly used/nearly new plug and they were oily and had a bit of carbon. Cleaned them all off and reinstalled.
Turn key > no start 3x
Walked away frustrated and came back again to turn the key and it started. Ran very smooth. Had a decent bit of smoke and smelled like oil, so I checked dip stick. Little high. I decided to just perform a routine oil change since the new seasons coming anyway.
Oil looked nice and dirty. No coolant. No metal.
Turned key, starts, and no smoke. AFR had me running a little rich around 12 idling, but I closed it down and decided to take it on a drive the following day.
So today I hop in, go to start the car, and no start. Engine turns over. I’m assuming my plugs are fouled out again. It’s been a longer process than described and I’m just exhausted from working on this project.
Every thread I come across just seems bombarded by people referring others to use the search bar, and never answers simple questions. When I do find answers the posts are from 2007 and photos don’t load, or the info is vague.
All my scan master readings line up as recommended. TPS is set at .42 IGN on and .44-46 while idling. IAC ran a little high around 30 at idle. Nothing else sticks out.
I feel like if I continue to remove the plugs and turn it off again it’ll repeat the process. What would you guys do going forward? What can I test that may cause this consistent no start issue? I’m going to be attacking my spark system tonight, I just feel like I need some feedback from someone telling me I’m not wasting my time.