High RPM, High Load Misifre
 

So I did a bunch of searching, but the USO has a time limit on their computers, so I tried to narrow it down as much as possible. I have an 05 MT, with 63k on it, and the mods listed below, all screens installed on AEM intake, and it seems to come and go. At about 8000 RPM I will get a blinking CEL and a code for random misfire detected. The plugs are NGK from BHR, and yes, everything is installed correctly and double checked. I am thinking it is probably either: injector, MAF, and/ or fuel pump time. But I just want to make sure I didn't miss anything stupid. I am on my way back to beautiful Afghanistan, so if these things are the most likely culprits I will just replace them all, and order the pump from BHR. I did do the ESS reset, and cleaned the MAF prior to reinstallation with the AEM intake. I am also planning on purchasing the AP from MM when I get back, but I don't believe that will make the problem go away. Any insight that can be provided would be greatly appreciated, thank you!

-Kevin Eells

You got plugs from BHR but you haven't done the coils?
If you got 63k miles on the original coils, you are fairly lucky. I wouldn't go past 30k on OEM coils.
Having said that........might consider new wires at the same time.

It has the BHR coils, it just might not be listed in my signature. It has performance wise, AEM intake, RP midpipe, GREEDY SP2, BHR coils and wires, BHR flywheel, ACT clutch, any other ideas?

Ah.......okay, well that makes it tougher to diagnose.
Going to sound silly given what you written, but sure the plug wires snapped on good on both ends?
To be honest, doesn't really fit the fuel starve scenario and as you know..............misfire(flashing CEL) is usually coils. You have a code reader or can you go to Autozone just to see what it is? It should be stored. Would be nice to know if it;s P0301 or not.

What you and Mazsurfer have already discussed are the usual culprits to your issues. Add a plugged/failing cat to the list of possibilities - especially the misfire under load scenario.

If you have a stock catalytic converter,, that could be causing your issue.

99% sure I got the wires on good and tight. But since I am 7000 miles away right now it makes it a little hard to check lol. I don't have a Cat anymore, so it would not be a clogged cat. The problem reared its head on my last day of my 2 week R&R in the states. So I just threw the problem out to you guys to try to narrow down the possibilities. The code I pulled was "Random Misfire Detected"

hey,

shoot me a pm. maybe i can help you i am semi local.. would love to see your dashhawk..


beers :beer: