16196395 with 4L60e trans bin files

[Stealth13]

I have the 16196395 BJLH $0E PCM that has been in my 1994 Chevy k1500 5.7l 4L60e truck for many years. I have now found out that this PCM is for the 4L80e transmission. I don't think a 4l80e transmission was removed and a 4l60e installed so the 16196395 must have been put in at some point. Not sure how this happened. I found the bin file for 5.7l BHMD but its for the $0D 16197427 PCM. I can't find a bin file for a 4l60e with the 16196395 $0E What should I do? The truck runs and drives fine I'm just wondering why it has such bad gas mileage (10 mi/gal) and i need to pass an emission re-test due to high CO at idle. (11ppm over the 200ppm max for passing the test. This truck also did not have an IAT sensor or a MAT sensor to go with the bin files that I have looked at in Tunerpro RT. There are a few tables that rely on MAT for calculations and the log data shows the intake air temp reads -40.0 deg all the time. This tuning stuff is starting to get very complex and frustrating. I have no way to do a sniffer test to see where the readings are out the pipe now that I have replaced the O2 sensor, the EGR valve, the TPS, the IAC and the ignition coil. All original equipment from 1994.

[steveo]

question 1: do you have an iat sensor? -40deg would be typical for an open circuit (in other words sensor not connected)

[dave w]

I have the 16196395 BJLH $0E PCM that has been in my 1994 Chevy k1500 5.7l 4L60e truck for many years. I have now found out that this PCM is for the 4L80e transmission. I don't think a 4l80e transmission was removed and a 4l60e installed so the 16196395 must have been put in at some point. Not sure how this happened. I found the bin file for 5.7l BHMD but its for the $0D 16197427 PCM. I can't find a bin file for a 4l60e with the 16196395 $0E What should I do? The truck runs and drives fine I'm just wondering why it has such bad gas mileage (10 mi/gal) and i need to pass an emission re-test due to high CO at idle. (11ppm over the 200ppm max for passing the test. This truck also did not have an IAT sensor or a MAT sensor to go with the bin files that I have looked at in Tunerpro RT. There are a few tables that rely on MAT for calculations and the log data shows the intake air temp reads -40.0 deg all the time. This tuning stuff is starting to get very complex and frustrating. I have no way to do a sniffer test to see where the readings are out the pipe now that I have replaced the O2 sensor, the EGR valve, the TPS, the IAC and the ignition coil. All original equipment from 1994.

Intake Air Temperature (IAT) was not used on TBI.
Manifold Air Temperature (MAT) was not used on TBI.

BHMD screen capture from C.A.T.S CalData Program showing 16196395

Shows M30 (4L60E) Transmission

L03 vs. L05


BHMD.PNG

[tayto]

I have seen '7427 in 4L80E trucks, this is nothing new/unusual.

[Stealth13]

Thanks for the responses and info. The Caldata page shows the m30 trans but the L03 5.0 engine. I have the L05 5.7l 3.73 gear ratio 4l60e trans. The bin file i am using is the (BJLH_94_C-K_Truck_5_7TBI_4l60e_with_3_73_or_3_42_gears.bin) When I look at the parameter tree only the 4l80e is listed.
I don't know if it a issue or not. I replaced the TPS after getting multiple code 22's last week. The truck has never shifted better! Best money I have spent yet. It is idling smooth at 600 rpm in park and 550 in drive. I think it might just pass emissions now! I'm planning to do the TBI mods and pull the intake and reseal. Also to see if the engine has a hydraulic roller cam or not.