Tune sanity check

[Batmanntexas]

Originally Posted by JMI

Don't bother tuning the MAF, delete it.You'll probably max it out with decent boost. Do the custom OS system and tune it SD.That what we did with those older C5 Vettes. Did some 427's W/YSI with the 2/ 2.5/3 bar setup street cars(depends on the ECM used. 20psi boost a few years back. It's time consuming,But once it's dialled in.Drove and worked perfect. 9 second street cars driven too and from the track. Nothing special now, but back in the day,it was pretty good.

Got it. Already applied the 3-Bar SD OS on it. Currently, the car won't stay running long enough to really get any useful logging data from it. The A/F is way off (lean), and it throws a P0200 (Injector circuit) immediately. They are new injectors, and they are all measuring 12.0 - 12.2 ohms. My guess is that there is a grounding issue somewhere causing the issue.

Originally Posted by stevieturbo

You say it's a 24x crank...does it have the correct corresponding 1x cam trigger ?

Yes, it has the 1x cam gear on it. It's a Gen IV block, but all of the sensors are Gen III (minus the MAP and LS7 MAF card).

Originally Posted by Slowhawk

This doesn't tune like the e-38.

maf off,open loop. can leave l-terms if you like to dial in.
All the work will be VE table. 411 pcm's have limiters so you might go into limp mode by injector/ve scale.

Start, take notice of a/f. adjust ve till you get into ballpark . max out ETC predicted airflow table.

They are easy when you get a handle on it.

Thanks for the tips. The PCM is a P01, so I'm still learning where/what the limits are. Supposedly, it will take injectors as big as 254lb/hr without any scaling required. I'm all for tuning it in SD only, I just need to figure out what's keeping it from running for more than 2-5 seconds at a time....

[Slowhawk]

If you had efi live I'd just send ya a file,done a sh!t ton of those.

They are easy to me. being an 02 vette 411 comp.

start/shut off is usually fuelling. just as long as it isn't going into limp mode.

[Batmanntexas]

Originally Posted by Slowhawk

If you had efi live I'd just send ya a file, done a sh!t ton of those.

They are easy to me. being an 02 vette 411 comp.

start/shut off is usually fueling. just as long as it isn't going into limp mode.

I appreciate the offer! I got some help on the HP Tuners forum. Turns out that the VE table needed to be increased in the lower region about 80%. It will now start and idle. I am getting a P0200 Injector Circuit code now, and my logs show that Bank 1 is at 25%+ STFT, while Bank 2 is <10%, so it appears that I have a faulty connector/broken wire, etc., on the Bank 1 side.