heres what my car is doing . when cold (28F) or so .it runs very rich , and the CEL is on with a 32 and 34 showing . it misses until you have driven it around 10 miles. i can then shut it off and re start it and it runs normally with no CEL on for the rest of the day. what should i be looking at as to the cause of this ?? its a bone stock 86 TPI 305. in good health and tune. otherwise

 

DTC - 32 EGR system failure

DTC - 34 MAP sensor circuit error (signal low indicating high vacuum)

Is 86 MAP? I thought you would have a maf sensor......

Check and see if your EGR valve is sticking open.

 

What's the MAF connector look like, maybe it makes poor contact in the cold.

 

the maf connector looks normal . wiggling it makes no diffrence

 

Connector at the ECM? They usually fit tight but you never know. Testing by trying to keep certain parts warm to see if it changes.

 

i thought of that too . so i put a heating pad on the ECM . and at 28F ,even with the ECM at 100f . the cold start miss and stumble is still there. now this car has a new MAF and both relays . a recent ECM with a chip from "tuned performance" a new IAC and TPS (which , by the way i cant seem to get right ). recent injectors and FPR too. once it gets to operating temp , and you shut it off . and re start it . all is normal and there is no CEL

 

Iirc you went through a debacle getting a good new maf, possible there's a circuit problem in that maf? Try keeping it warm.