You guys did read his post, yes? He clearly stated that he sent his injectors over to FIC to have them tested and they were flowing properly.

 

Sorry to burst your bubble, but Buschur already did back to back tests on several intake manifolds and he states in his test that there is no other IM that will make more power up to 5,000 RPM than a ported OEM IM..

http://highboostforum.com/forum/show...and-facts-only

Back on to the OPs subject.

 

check injector resistor pack / fuel pressure reg / remove pipe from fuel pressure solenoid and pipe direct to manifold /fuel pump relays or hardwire pump and get an fpr with a guage

 

Thanks for the replies guys. The injectors were sent in and are flowing properly, I have removed the resistor pack as these are the high impedence FIC 2150cc injectors.

I do have a FPR with gauge however I do not have a log with it. During a couple of dyno pules before it blew I watched the FPR gauge and it held strong 80-85 psi through boost.

 

Look if your map has a pulsewidth trim on that cylinder. Maybe it was put in there accidentally.

 

We actually looked at the individual cylinder trims before it blew, none were changed.

 

are you sure that injector signal is getting to the injector? even the the injector is fine i would check to see that the ecu is indeed outputting the fire signal. idk if the log reads the signal at the exit point of the ecu or somewhere else

 

I may be out of line, but I would try a reputable tuner. Yes I know you have had two, maybe two bad ones in a row!!!

 

Interested in seeing the logs also.

 

Combo bad cam angle sensor bad injector.

 

AEM apparently doesn't have a fail safe in it for a failure of the Cam sensor like stock does. Buschur and several others have commented about it in the past. It is because of that it is recommended to use a NEW OEM Cam sensor and replace it on a regular basis plus use a Cam sensor heat shield.

Good luck.

 

I think this was caused by lean AFR, if you have checked the injectors then the next suspect would be the fuel pump. What max boost did you run while on the dyno?

 

How is your engine harness? Is the clip for the injector solid?

 

i was thinking the same. my other suggestion would be to send in the aem ems to have it checked out or just buy a series 2 or infinity or stock ecu.

 

Last night I checked the fuel filter and it looked good, I also checked voltage at the injector wiring harness clips all have 12v.

I never thought of the cam sensor being an issue. Max boost on the dyno this time was 36psi and fuel pressure was holding strong through the pull.

Attached are some logs from the pulls, let me know what you guys see. Also you will see that the knock sensor was noisy, we thought this was just engine noise given that it was picking up as much or more with a no boost acceleration pull on the dyno see "knocktest"