strange miss while crusing

[slwsrt]

i have an aem ems on my car the mods are as followed i have a gt35r turbo kit i have rc750cc injectors new ngk plugs new wires bc stage 3 cams with springs and retainers wiesco pistons eagle rods no balance shaft chain static fuel pressure of 58 psi on 20 psi

i drive the car around town and at a load range of -7.99 psi to -4.00 psi the car seems to have a bad miss but when i go to wide open throttle the car runs great no miss or nothing afrs of 11.3 at 20 psi we have tried ignition tuning fuel tuning cant seem to get this figured out please help

[RedSpeedFreak]

Just to reiterate, the car runs perfect outside of a group of 1 or 2 load cells and 3 rpm cells. From about -7.9 to around -6 or -4 load, and from around 1900 to 2500rpms. Most of the time the misfire only occurs inside the load cells just above decel (aka light throttle cruise).

Also, the car has never done this before, in the previous months he's had the EMS. The most recent change to the car was removing his problematic FRL/FPR and replacing it with a stock FPR/no FRL on the same 750cc injectors.

[Sick SRT4]

I had a simmilar issue, but my misfires were inconsistent. It sometimes misfired outside outside the normal cells of misfire. I had this consistently get worse and found somehow my .cal files were corrupting. Eventually loading the basemap all over again stopped working so I sent the ECU back to AEM so they could bench test it. They are still testing it now, but the day I took the AEM out my laptop crashed due to something with the USB port, so it could still be all my laptop's fault. I will update when AEM gets back to me on they're testing of my box.

PS....Car runs fine on stg2 ecu and SAFC.

You may also want to check the inlet screens on the injectors, I have RC750's and the screens clogged up so I removed them and installed a better fuel filter. That issue caused a simmilar situation for me a while ago.

[onthedwnlow]

i also have this problem...very un predictable miss happens maybe once a day mostly when cruisin on the highway

[never2muchboost]

start logging 02 and 02#1fb value,if you made a fuel change btw 38 is pretty low fp i usually run rc's around 42-45 psi then again im always trying to squeeze a lil more fuel out of it anyway lol

[slwsrt]

just so everyone knows my problem was solved with new injectors

[never2muchboost]

thanks for the update