Hello,

I need some help (please!) finding the source of the following problem.  My
cat. converter and muffler run way too hot, but engine/coolant temps are
fine.  I
experienced this problem once before, when the distributor cap cracked.
Engine was running on 3 cylinders, and unburned fuel from dead cylinder was
being exhausted into the converter, where it burned and got HOT.  It was hot
enough to heat up the rear of the van-too hot to touch.  I have a similar
heat problem this time, but I have ruled out bad cap, rotor, wires, etc.
Perhaps some intermittent firing problem in one/all the cylinders, but van
runs ok.  Problem manifested after replacing fuel pump.  Perhaps a suspect
fuel pressure regulator?  O2 sensor?  Help!  I don't want to melt my van!

TIA,
Philip