i was reading the FAQs and it said that backfiring while letting off the gas can be caused by a faulty radio suppression relay. i think that may be my problem. how can i test the radio suppression relay? is there a way?

thanks in advance!

-sal

You can remove it and hook the battery to the coil contacts and detect if they close with an ohm meter or you can turn on the ingition and remove an injector plug and check if you have 12 volts on one of the plug pins. Some people have said you need to remove all the plugs to check voltage but I didn't find that to be the case with my car. The other pin should have zero. Backfireing is usually caused by too rich a gas mixture or bad timing. Your fuel pressure regulator may be leaking gas through the vacuum hose or maybe the camm belt has jumped a tooth.

You can remove it and place a wire jumper between the two heavier wires. If the symptoms persist the relay is not causing them.

Randy