Ast0nASHm3nt

I have a 93 CX bubbleback with a b16a2 5 speed. It hasn't been happening below 10 degree celcius weather, but now as the warm weather is here my car is acting up again.. You know how the pump primes for 3 seconds or so when you turn the key to ON. When my engine is cool, it starts fine but when my engine is even just starting to get warm 1 of 3 times if i shut it off the pump wont come back on until the engine has cooled. It also happened when I put 91 octane instead of 87 like i usually do. I dont know if the computer is confused but I would really like to know how to fix this. It can be a real pain sometimes. Thanks yea also sometimes if comes on for a split second before i start it , then i shut it off and do it again and it'll come on longer then i try to start it and sometimes I am successful sometimes not.. Real pain

ezone

With a wire diagram and a voltmeter you could test to see if the PGMFI Main Relay might be at fault....

..or figure out if the ECM isn't turning the relay on when it should.

danwat12345

Fuel pump relay with solder crack?