Can c.o.p. setup help random misfire from 6bolt swap?

[Trainer7904]

So I just got my brand new SBR 6-Bolt long block put in. It feels amazing, only problem as usual with the swaps is the random misfire code. I searched and no one has a real solution to this besides dsmlink and I was wondering if I got a c.o.p. setup if that would eliminate this?!?! I haven't heard of anyone trying this and wanted to see if any of you wisemen could tell me "in theory" if this would help. THANKS in advance!

 

[Trainer7904]

Add to that would an MSD Ignition help?

 

[Splitpi]

The code is a logic bug resulting from no longer having a Crank Angle Sensor along with the Cam Angle Sensor for the ECU to decipher the crank positions relative to the cams... thus resulting in random missfire (which doesn't necessarly happen). Its a "feature" of the 6-bolt swap. DSMLink allows you to ignore the code.

 

[Trainer7904]

I thought it was because the signal wasn't as precise. I have the 1g cam sensor and doesn't that give a signal to the ecu for the 2g crank sensor? I was told if i put better spark plug wires on it would help, so i put some MSD wires on and it helped slightly but it still sometimes does it, that was why i thought if i would make the ignition system even better with less resistance it might help even more. Either way it's a pain in the ass!

 

[Splitpi]

I thought it was because the signal wasn't as precise. I have the 1g cam sensor and doesn't that give a signal to the ecu for the 2g crank sensor? I was told if i put better spark plug wires on it would help, so i put some MSD wires on and it helped slightly but it still sometimes does it, that was why i thought if i would make the ignition system even better with less resistance it might help even more. Either way it's a pain in the ass!

It may help... but it won't eliminate it... so I believe. With the 6-bolt swap you no longer have the Crank Sensor so you emulate it using the 6-bolt cam sensor. But as stated by you, it is either not as sensative as the 2G Cam sensor and/or the extra unique sensor of the of Crank Sensor factors into the ECU's calculation. But it is a "feature" of the 6-bolt swap. Possible solutions is to use DSMLink to suppress the code, or use another standalone such as AEM, Megasquirt, etc...

 

[Nicks2319]

What kind of CAS did you put in? The Black Top CAS is supposed to be the best in eliminating the code.

 

[Trainer7904]

Yeah I have the green CAS, I keep checking out junk yards and online, still trying to find a good black one though.

 

[Rice Over Wheat]

I don't think the misfire bug only surfaces with 6bolt swap. I have a 7bolt but ever since cams went in I get P0300 every now and again, though after a few starts without it surfacing it disappears. Car runs great with no symptoms of actual misfires. I'm about to supress the code with link as it is getting annoying.

 

[Michael Z.]

A Keydiver chip would also eliminate the code. Although it doesn't have the full functionality of DSMLink, it's a hell of a starting point for $150. He can program you're fuel maps too. Here's the link: http://www.dsmchips.com/2g.html