NA V6 Backfiring through carburetor

[RockfordEsprit]

Hey All,

On my '81 bird (3.8L E/C N/A 2bbl) I have a problem where I go to full throttle from idle, and it backfires a bunch of times and hesitates, then goes. I have just replaced the following components with brand new as of yesterday:

Carburetor (DualJet E/C)
Coolant Temperature Sensor
MAP sensor
Spark Plugs (BOSCH Platinums)

I thought about replacing the ECM and/or the distributor as this might be the problem. I also had a computer error awhile back:

"SPARK CONTROL BYPASS CIRCUIT GROUNDED" (via Diacom)

This error has not returned, but I still suspect it may be a problem.

I also have an intermittent miss while the engine is warm, possibly unrelated.

Anyway, you guys are the experts, what do you think?

Thanks!

Julian

 

[Freddie's Buick]

Firing order not right. Sometimes when one changes the plugs they would lose track of one. (Double check.....this has happened many a times to an old veteran like myself.... ).