Fuel pump sometimes won't start on 1994 Mazda B2300

This is not a question but some information that I want to share. I had trouble for about two years with the fuel pump not starting, sometimes, for days at a time. I spent a lot of money having diagnostics and work done, but no-one could find the problem. I discovered that a chip called PCM and the relay for the fuel pump, in the black plastic box located under the hood, needed to be changed. Total time was about 2 minutes and the total cost was $52.00. Problem solved.

by in Gastonia, NC on November 12, 2010
1 answer
ANSWER by on November 12, 2010
Yes, the MAIN relay or PCM/Fuel Pump relay are VERY common causes for an intermittent no start because the fuel pump is not being energized. It amazes me how many shops still don't know about this when it is widely posted on Technician Repair Sites such as IATN ( International Auto Technicians Network ).
Related Items:
I've changed fuel pump and fuel pump relay, still doesn't start sometimes! And like now, it won't start at all! I was told that the computer was the only other alternative! You can hear the pump co...
got a 1994 b2300 mazda truck turns over wont start, changed battery, plugs, wires, starter, ignition module, fuel pump, fuel filter, had entire electrical checked at shop came back fine. have paid ...
the starter turns the engine over, but it sounds like it's not getting any fuel. Sometimes it'll sputter like it wants to start and then dies. Under the hood there is a tag stating that "this vehi...