FIC 1000cc INJECTORS + E85 - 2011 Cad CTS-V 6-speed M/T = Questions

[DrkPhx1]

Some quick observations. First you need to charge the Spark Axis above the 1.36 default. In your log, it's at 1.54 at 4600 rpms, so you need to log all the to redline and adjust it accordingly. Then you need add spark values to the newly added cells. Looks like you're adding spark at WOT through the IAT table. You need add spark values into the Flex Fuel Table (B5114) and also add values into Flex Fuel Multiplier table (B5145) so the ECM uses those factors (or %) of the Ethanol Spark values and adds them to the main spark tables for the final number.

[joecar]

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Anyone familiar with Parameter: B8024 and B8025? High Speed Mode Enter/Exit?

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These set the Dynamic Airflow RPM disable/enable rpm threshold...

rpm hitting or exceeding B8024 disables Dynamic Airflow mode.
rpm dropping below B8025 enables Dynamic Airflow mode.

Dynamic Airflow mode disabled: ECM uses MAF-only.
Dynamic Airflow mode enabled: ECM uses MAF for steady state airflow and VE for transient airflow.


Like DrkPhx said, don't set B8024 higher (unless you have VVE/VE corrected up there, but even so, MAF works better at high rpm).

You can disable VE by setting B8024 and B8025 to zero (or say 20 rpm and 10 rpm).

[GR8GAME]

These set the Dynamic Airflow RPM disable/enable rpm threshold...

rpm hitting or exceeding B8024 disables Dynamic Airflow mode.
rpm dropping below B8025 enables Dynamic Airflow mode.

Dynamic Airflow mode disabled: ECM uses MAF-only.
Dynamic Airflow mode enabled: ECM uses MAF for steady state airflow and VE for transient airflow.


Like DrkPhx said, don't set B8024 higher (unless you have VVE/VE corrected up there, but even so, MAF works better at high rpm).

You can disable VE by setting B8024 and B8025 to zero (or say 20 rpm and 10 rpm).

PERFECT
I have a better understanding now.
Makes sense with how my AF is reacting now.

I'm going to have to post my file again. I've made some changes and the car is running a lot better...until I ran into a misfire!!!!

[joecar]

what caused the misfire...?

[GR8GAME]

I'm not sure
I messaged the file and made a pull. The dyno graph looked perfect and I felt positive we had solved the problem.
I made some changes to the MAF (just slightly) and made another pull and felt the misfire a few times during the next pull (and saw it on the dyno graph)

I'm going to pull the plugs tomorrow and see what's going on.

[GR8GAME]

what caused the misfire...?

Spark Plugs.

I didn't build this car, the customer did. So I got frustrated and pulled the plugs. TR7IX gapped at .040
I put in new ones gapped at .030 and it's been a LOT better.

Ok, I'm getting a MAF/MAP correlation error
I HATE just disabling tables that don't need to be. I would rather leave in SOME sort of safety net.

Any advice on table number:
C0801 thru C0806?

I don't want to max these out if I don't have too.

[GR8GAME]

(E-67) 2011 CTSV Manual (12639469)_E85-1000cc(FIC) kitchen sink.ctz

Ok, I'm at my wits end here.
The car will just NOT spin past 5k RPM's in 4th or 5th gear.
This is a 6 speed car.
2WD Dyno!

I'm hoping I hit all of my triggers, parameters and everything else I could think of to shut off!!!!!!

Any help would be appreciated.

And no, I haven't adjust the spark table. That's about it.

[DrkPhx]

Spark Plugs.

I didn't build this car, the customer did. So I got frustrated and pulled the plugs. TR7IX gapped at .040
I put in new ones gapped at .030 and it's been a LOT better.

Ok, I'm getting a MAF/MAP correlation error
I HATE just disabling tables that don't need to be. I would rather leave in SOME sort of safety net.

Any advice on table number:
C0801 thru C0806?

I don't want to max these out if I don't have too.

Good job. I'm amazed at how many of these modded ZL1/CTS-V's run such a large spark plug gap. I gap mine at .032 (same plug).

- Leave C0801-C0802 stock. At your boost level you need to increase the values in C0803-C0806 by quite a bit because the engine is seeing significantly more airflow at a higher rate. Otherwise, it will trigger those codes and in some cases send it in to limp mode. How much you increase the values depends on your specific car.

[DrkPhx]

(E-67) 2011 CTSV Manual (12639469)_E85-1000cc(FIC) kitchen sink.ctz

Ok, I'm at my wits end here.
The car will just NOT spin past 5k RPM's in 4th or 5th gear.
This is a 6 speed car.
2WD Dyno!

I'm hoping I hit all of my triggers, parameters and everything else I could think of to shut off!!!!!!

Any help would be appreciated.

And no, I haven't adjust the spark table. That's about it.

Does it hit 5000 rpm limit on the street or only on the dyno? Look at the values in B5212 and B5203. Personally I would leave B5212 stock. B5213 is a cold engine rev limiter based on ECT & engine run time in seconds. I've never hit the cold rev limiter on the street, but hit it a few times on the dyno. If you start the engine and go WOT right away it will hit this limiter.

[DrkPhx]

FYI - the flex fuel spark table is an "adder" table meaning the values in that table is added to the main spark tables based on the factor in the Flex Fuel Spark Multiplier. This allows you to fine tune the spark based on ethanol content. Your Multiplier table is zero for all values which means the ECM will not use the spark values in the Flex Fuel Spark table (which has the same exact values as the high octane table).