Jump to content
The mkiv Supra Owners Club

Misfire - Intermittent and code 14 - Low fuel pressure


supRo

Recommended Posts

Since yesterday I've been having misfiring - wasn't too bad yesterday but worst today. It's happening intermittently on idle and off and on boost load.

 

During the misfiring the FSE fuel pressure regulator doesn't go past 28 psi when i press the throttle.

 

Is the problem indicative of a dodgy FSE fuel regulator? I'm gonna have the stock one put back on tomorrow but wandering if it could be something else as the error code suggests something to do with ignition but could it be the misfiring setting off the error code?

 

Cheers,

Ro

Link to comment
Share on other sites

This morning I set out very early (5am!) to get to Phoenix. Planned on going on the back of an AA truck but they told me that it will take alot of time. I decided to drive her......Had no problem whatsoever, drove perfect from Hampshire to Watford. Must be a temprature thing. My FSE is bolted on the back of the Inlet manifold and it was getting very hot (especially with the ambient temp) so the fuel must have been evaporating too quick.

I'm currently having a Aeromotive FPR fitted...away from the engine!

Fingers crossed.

 

Thanks for the reply Alex.

 

Ro

Link to comment
Share on other sites

New Aeromotive FPR and it's still happening - Seems to be on boost only now.

 

Error code 14 still. These are the things I will have checked out:

 

Sparkplugs (Currently Denso Irridiums, 3 months old)

Coil pack connectors (1 clip case is broken from before)

Coil packs

Igniter pack

ECU connectors - Someone had code 14 because of loose ecu loom connectors.

 

Anything else?

 

Thanks,

Ro

Link to comment
Share on other sites

Combination of FSE fuel regulator getting too hot and a dodgy Igniter pack! Got an aeromotive FPR bolted to the inner wing and a new Igniter pack.

 

Thanks to Alex, Terry S and the boys at Phoenix

Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.