Don't sound like a vapor lock to me-burning up Cat's to me its running too rich-injectors are sticking open and causing your low fuel pressure-try flushing the fuel system and see what happens

Answered by rasmataz
68 questions asked

How would i go about flushing the fuel system? what would i use?

Response from carfreak105576
1 question asked

Take it to a shop or use a fuel injection cleaner and run it thru and see what happens

Answered by rasmataz
68 questions asked

I've used cleaners fuel stabilizers and octane boosters all made by Lucas.

Response from carfreak105576
1 question asked

What liter engine is this?

Answered by rasmataz
68 questions asked

4.9L 300 straight 6.

Response from carfreak105576
1 question asked

Test the ignition coil's primary and secondary windings resistances could be it heating up and breaking open-let me know the readings

Answered by rasmataz
68 questions asked

Let me point out a couple things. First, vapor lock is not even possible with this system.

Second, if you really only have 40 PSI of fuel pressure, that has to be resolved before going any further.
That should never go below 50 with the engine off and 45 with the engine running. That will cause a world of problems. The cats were glowing because of how the engine was running, not because there was anything wrong with the Cats, although getting them that hot can melt the insides.

Answered by Wrenchtech (expert)
14,828 answers provided

how do i test the coil windings? ive actually never done that. and its a new coil. only about 3-4 weeks old. the old one smelt like burnt wiring.

Response from carfreak105576
1 question asked

Go to this link: http://www.youtube.com/watch?v=rJYJ3KvPhhY

Answered by rasmataz
68 questions asked