I have an SAFC, an AEM Tru Boost, and an Innovate LM-1. Noted fuel mods are Walbro fuel pump.

I have my Tru Boost set to 65% duty cycle which is roughly 9.9psi in 4th and creeps to like 10.2 in 5th. Perfect boost for the stock turbo/intercooler combo. I hit full boost somewhere around 5k.

My SAFC hi map currently has no correction until 3k. Than at each 1k interval it is +5 (3k) +5 (4k) +10 (5k) +0 (6k) and +0 at (7k).

This causes my AFRs to be a DEAD 11.7-11.9 until about 6k when it than becomes a 10.2.

My question is, what is causing me to run so rich up top? Can I safely turn the fuel down? Do I have upgraded secondaries?

 

I'm thinking it's more my injectors are stuck/sticking open. I've been flooding recently and getting poor gas mileage. Can anybody confirm these symptoms?

 

injectors are leaking

 

Is there a way to determine if it is the primary or secondary rail so I can swap the injector from the good rail to the bad rail?

 

spray carb cleaner around the secondary rail and see if idle speed increases.

 

wouldn't the extra fuel pressure from the walbro make it run richer up top?