'85 duke auto with A/C (not working at the moment). No check engine light, no codes stored. Timing set at 8 deg. BTDC with trans in D and ALDL shorted to ground.
195F thermostat and 235 fan switch (fan works and goes on at that temp - verified with ECU data when engine shut down and heat soak did its thing after a few minutes).
I've been fighting three problems since (and some time before) the engine rebuild a year ago. Car was started first time in 10/2019 and I've done roughly 2200 miles since then.
1. Overheating with no throttle applied. Or so I thought since the ECU coolant temperature sensor reads within spec. So I would ignore that for now but I wasn't able to replicate an almost pegging temp. gauge at the first heat up cycle. Will post a log if I can replicate that again, might have to drive a little longer for that.
2. Hard cold start (fires up and dies immediately, most time won't start until "clear flood" is applied). Runs rough for a few seconds and stumbles for a while at part throttle. Gets worse when it's raining I noticed. All this time it smokes pretty bad and smokes more with more throttle but after a minute or two there is almost no smoke at idle or wide open throttle. Then I can drive all day and everything looks ok until I shut off the engine and then...
3. Hard hot start. It starts almost immediately but within seconds idle goes down and will die very often. Will die almost always when I shift into D with no throttle. A little throttle helps a lot. During this time and a minute or two after this hot start the car is a smoke machine and likes to stumble some. This minute/two passes by and all is back to normal.
Can somebody help me understand and look at the logs if you are seeing something suspicious? I've been doing some reading and here are my thoughts on these logs and if anybody would chime in I would be grateful.
A. Does the coolant temperature look ok? It fluctucates quite a bit but maybe that's the way it should be?
B. My TPS reads 1.5% at no throttle and 86% at wide open throttle. WinALDL setttings are 0.54V for 0% and 4.60V for 100%. Is that within spec?
C. It seems the o2 sensor voltage varies very early in the heat cycle. Is this normal or could be a bad sensor? It should be no issue though I guess with a cold start since it's ignored?
D. My INT values are somewhat below 128 on a lot of occasions. Don't know if that's ok. My BPW seems to be a lot of times over 140 and from what I read it should be lower? Means it's almost going lean?
Any tips would be great. Here's a link where I have a both hot and cold start log in .txt form. Note I start the log before the engine is started and you can see a few crank attemps when cold and some throttle movement on a hot start to keep idle going. Many thanks in advance.
EDIT: Changed the links to a more friendly service (again)https://drive.google.com/op...JQHYwuDFzz2SA-l3PutZhttps://drive.google.com/op...dSrDNQ2kLlO6ByMxPhWK
Cold start smoke video:https://youtu.be/OgX4rXXx0rs
[This message has been edited by cebix (edited 05-20-2020).]