I have already looked this up and i have not found nothing, my problem is when ever i get into my car sometimes i turn the motor over and sometimes it does not start like its not firing, i have checked the ignition made sure the plugwires are fitted good on both ends, im fuel pump is ok, i'v primed it a whole lot of times and finally it cranks up and runs fine, other case is if the car is turned off at the gas pump i get in crank and it does not want to run it just turnes over finally sitting there 3min and crank again it turns over and finally runs? what could the problem be please help if u know.