Silver-IXse

iTrader: (4)

Hey there well i just got my evo tuned today in socal i recently added a BR double pumper and Fuel Lab Regulator with a Fp Red and Running RC 1200s well my tuner started tuning the car and we notice the injectors started maxing out on pump gas making 430awhp and he was concern ablut my injectors cause the duty cycle was at 85% and the afr was at 11.3 which was weird especially on pump gas we looked at my old dyno graph with a green and the injector cycle was at 67% and making 400hp ... Do you guys think the injectors are clogged or goin bad i had the car sitting for about a month and half on e85 can you guys please help me out thanks

Biggiesacks

You might try verifying fuel pressure at the rail.

Fuel Injector Clinic

iTrader: (1)

You really want to try to avoid letting your injectors sit with E85 in them to avoid corrosion issues which is likely the problem here.
This sheet, from our website, should go over how to properly pickle injectors when using an alcohol based fuel.




How to take care of your injector when your car is not running regularly
It is always a good idea to expel all fuel from the injectors and spray the injectors with a product that displaces moisture, like WD-40 or similar due to the facts that gasoline will leave behind deposits that can cause the valve to stick shut, and that some fuels with alcohol content can draw water into the injector internal causing rust.
The best way to attempt to clean all the old fuel and any potential deposits from your injectors is to use non-chlorinated brake cleaner, a 9v battery to pulse the injector, and about 20psi of compressed air to push the brake cleaner through the injector. It is an excellent idea to spray the contents of the injector into a clean paper towel so that you can see what was inside the injector. If necessary, repeat the cleaning process several times. Once you are finished cleaning the injector with brake cleaner, use WD-40 or a similar corrosion inhibiting/water displacing fluid to keep the internals from corroding until you are ready to use your vehicle again.

Read more of our FAQ here: http://fuelinjectorclinic.com/faqs/

Silver-IXse

iTrader: (4)

I took my injectors to get flow tested and everythng came out perfect i notice my fpr gauge is at 30 or 35psi is that the reason why my injectors maxed on pump isnt around 43psi stock

bbong

iTrader: (8)

Yes it's too low, should be around 45 on idle me thinks.

Silver-IXse

iTrader: (4)

So because ita low will that be the reason they will max out quick

bbong

iTrader: (8)

Yeah, your base pressure is too low, if it's low at idle, it'll probably be low at WOT, less pressure to the injectors the less they'll be able to spray.

Silver-IXse

iTrader: (4)

So i put my evo on the lift and recheck my double pumper install of the Y line for the secondary pump and notice a big kink on the line could that be the reason why it wasnt gettin enough fuel ???

Biggiesacks

Im sure it wasnt helping anything. Is your regulator adjustable?

Silver-IXse

iTrader: (4)

My fpr is set at 35