My 83 4.7L Car has developed a miss and stutters under a load. I noticed that when this happens, its after car is warmed up and It appears to go lean according to the W/B A/F gauge.
Car starts up and idles fine when cold.

My question is: What does the Temp ll sensor control on this model and when does it kick in? At start? Cold? after a certain coolant temp?

I`m beginning to suspect it or the ign. coil going bad. Thanks

 

This might help:


http://www.nichols.nu/tip816.htm