Strange C6 2006 with a magnusen SC. Randomly dies then no start.

[Wayne Presley]

2006 C6 6 Corvette, Magnuson SC kit and it randomly dies while idling. Im getting RPM and cam counts both running and idling. For some reasson the previous tuner has closed loop turned off. I attached a log with the car running, then dies, and trying to restart. When it dies it is like the key is turned off. THe log shows RPM, cam counts, adding fuel and timing as the RPM's go below the set idle speed (stall saver). I attached a stock 2006 Vette file for comparison. Any help would be greatly appreciated

BaseRead2006SCvette.hpt
idledies2.hpl
2006VetteAutoStock.hpt

[edcmat-l1]

There is a whole lot of weird going on in that cal file. Having the minimum injector pulse at zero at idle can't help it any. Offset doesn't look like any injectors I've ever seen. Same with the SPA. I'd start over completely.

Min inj pulse.jpg

[Alvin]

There is a whole lot of weird going on in that cal file. Having the minimum injector pulse at zero at idle can't help it any. Offset doesn't look like any injectors I've ever seen. Same with the SPA. I'd start over completely.

Min inj pulse.jpg

I feel pretty certain I've seen some early OEM gen 4's like that. Could be wrong.

[Alvin]

2006 C6 6 Corvette, Magnuson SC kit and it randomly dies while idling. Im getting RPM and cam counts both running and idling. For some reasson the previous tuner has closed loop turned off. I attached a log with the car running, then dies, and trying to restart. When it dies it is like the key is turned off. THe log shows RPM, cam counts, adding fuel and timing as the RPM's go below the set idle speed (stall saver). I attached a stock 2006 Vette file for comparison. Any help would be greatly appreciated

BaseRead2006SCvette.hpt
idledies2.hpl
2006VetteAutoStock.hpt

The o2's look lean after this shut down. Have you verified it isn't loosing fuel pressure for some reason.

[edcmat-l1]

I feel pretty certain I've seen some early OEM gen 4's like that. Could be wrong.

What part, the minimum pulse width? Can't say I've seen that before from GM. Seems nuts to be zero in any cell but the zero RPM.

[edcmat-l1]

The o2's look lean after this shut down. Have you verified it isn't loosing fuel pressure for some reason.

I thought the same but there's so much other nutiness in the cal. It does kinda look like it runs itself out of fuel.

Even the O2s look like it might have some misfires unless it has a cam in it. They shouldn't look like they do.

A lot going on with this one.

[Alvin]

What part, the minimum pulse width? Can't say I've seen that before from GM. Seems nuts to be zero in any cell but the zero RPM.

yeah.. I'm pretty sure I've noticed that before. If i see one come though soon i'll update

[Wayne Presley]

The cal is strange, if I command closed loop idling using the vehicle controls the STFT pull about 10% fuel. It has an AEM wideband on the A pillar showing 13.0 in OL and 14.3 in CL. I'm going to check the infamous C6 fuel pump relay socket issue next.

[edcmat-l1]

The cal is strange, if I command closed loop idling using the vehicle controls the STFT pull about 10% fuel. It has an AEM wideband on the A pillar showing 13.0 in OL and 14.3 in CL. I'm going to check the infamous C6 fuel pump relay socket issue next.

Why don't you just put a fuel pressure gauge on it?

[Wayne Presley]

Why don't you just put a fuel pressure gauge on it?

Magnusen fuel rail without a pressure fitting...

[edcmat-l1]

Magnusen fuel rail without a pressure fitting...

You can buy adapters, drill and tap a fitting, etc. If you want to measure fuel pressure at the rail it can be done.

[Alvin]

Sometimes the port is blocked by a pipe plug but I've never seen a magnacharger without some test port on it somewhere.