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It has a 3400 stall in it and is setting this code and going into limp mode once in a while. Anyone know what the issue is here?

He put the wrong cam gear in. He had taken some pictures before and after and you can see the difference. Kind of what I thought happened.

Thanks

He thinks the correct gear is in there but I am doubting that. Can installing the cam 2 degrees advanced trigger the code?

If my customer has installed the wrong cam gear and the car is triggering this code, am I beating a dead horse trying to get this car to start properly? It is hard starting sometimes, but runs fine...

It is richer for sure. If I calculate the A/F to the E85 stoich it is running at 7.5 to 1 now with the meth shot and 21 degrees of timing. She runs very strong. Do you think I should try a bit...

I didn't run this one without spray but I have seen over 200 degrees on 14psi before with no form of intercooling.

The IAT is about 6 inches up the intake tube from the meth injector. It is a 2bar SD tune.

145 degrees after the injection (very small shot). I am thinking that the added cooling from the Alcohol directly injected into the cylinders brings it down a bit more though in the cylinder. This...

It is a rear mount 80mm turbo, non-intercooled, 408 iron block Ls2, About 9.3 to 1 static compression, 6000-6200 peak power turbo cam grind that I can't recall the exact specs to from home. The...

I have run it up around 20 degrees and it pulls timing like crazy, so I lowered it way down to see if it does the same thing and it does. It just has something setting off the knock sensor I...

Thanks, I will try that.

The car is an 06 Cobalt SS and has very loud exhaust and I believe the KR is false. It is running 15psi w/meth injection and timing as low as 12 degrees and she knocks all over the place. A/F is...

That's what I figured. Thanks..

What is the correct way to recal a speedo for a smaller 2.73 rear gear? Just change the final drive and calculate the revs/per mile? What about the VID?

I opened up the hole a bit in the throttle body yesterday and decreased the timing a bit and she stabilized. The IAC counts at idle in Park are now 0-10 and in drive they are closer to 100 but it...

I think this thing needs a bigger IAC. She runs great at idle in Park with IAC counts in a good range. When in drive the counts start at 1oo something and start heading north until pegged after a...

Anyone? It's a terrible low speed decel surge. Idle and most everything else is ready to go with this car.

The car idles fine in fuel cell 19 but hates when I let off the brake and it starts moving. It does this same thing on decel under 10 mph.

It is a SD tune on a solid roller LSX 434.

Should I...

Why is this delay needed if there is no startup flair? Why not just go directly into idle control?

Kooks headers and exhaust mods only. A/F good (12.8 full throttle) and OK part throttle but mostly KR part throttle and some full around 4000rpm. Still stock spark tables except for the IAT spark...

Tune and just a brief log at idle. I think I was messing with the IAC's in the log so prob not much help.

That is exactly what might be happening here. The intake temps were less than 35 degrees since I was tuning outside. Monday I will richen it up a bit open loop and extend the open loop to close...

First or second thing that I did.

Make sure the O2's are both switching. I had this the other day....

OK, when I lean her out at idle and hold the timing very steady 24ish and let her chop a bit the idle is actually more stable w/ less vacuum. Is this inherent of alcohol?