my name is alex
suckin' gas
Upgraded to the Bosch 4 Hole style. Also installed a delphi fuel pressure regulator and replaced the vacuum hose between the FPR and intake. Incredible fuel economy increase. Went from average of 9 to probably close to 12-15mpg. Will know more at next fill up. Plugs cap and rotor were done right before I purchased... P/O's were chasing the ignition interlock module issue (ignition key security or whatever you really call it) and I have a receipt from the shop that did the work.
Again it only happens when the truck is hot. I would assume injector issue or plug wire cap/rotor issue would present 100% of the time.
One thing leading me to MAF issue is the P/O's had installed a K&N air filter (drop in not cold air kit) and I noticed when changing it the intake tube was oily and smelled like gas, which I assume is from the injector and FPR issue? Pulled the KN and installed a dry paper element.
I need to fix my hot start issue as well, and I'd love to get an MPG increase as well. Where did you get your injectors and FPR?