Scan Question
Thread Starter
Instructor
Joined: Feb 2000
Posts: 135
Likes: 1
Scan Question
I am using Datamaster and have noticed some thing act different on my 92 vette than when i used it on a 95 camaro. Are the fuel trims actually left and right readings? In the datamaster manual it says that it is only left and right for SFI engines, whereas my 92 is batch-fire. I was playing around and noticed that as i unhooked the injectors one at a time, it didn't matter which side of the engine, but the left fuel trim reading was the only one to change. Is this correct?
Thread Starter
Instructor
Joined: Feb 2000
Posts: 135
Likes: 1
It has 2. It's just that the Datamaster manual acts like it only reads one side, and pulling injector connectors only results in a change in the left reading as well, even if i pull a connector for an injector on the right side.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
What datamaster bin are you using? The reason I ask is you state you used it on a 95 F-body and that is a differnt bin then the 92/93 Corvette uses. THe 92/93 ECM use the DA bin and the 94/95 use the EE bin
92-93 Y-body 5.7L MFI (LT1) DM32xDA Bin
93 F-body 5.7L MFI (LT1)
94-95 F-body 5.7L (LT1) DM32xEE Bin
94-95 Y-body 5.7L (LT1)
92-93 Y-body 5.7L MFI (LT1) DM32xDA Bin
93 F-body 5.7L MFI (LT1)
94-95 F-body 5.7L (LT1) DM32xEE Bin
94-95 Y-body 5.7L (LT1)
Thread Starter
Instructor
Joined: Feb 2000
Posts: 135
Likes: 1
I'm using the correct DA software, it just seems to respond unusually to things. It's like the Right side reading is unphased by anything i do to the engine, it just goes to 108 and stays there. Even if i unplug injectors on the right side, it stays at 108 and the left side starts rising to 135, 140, 150, until i plug the injector back in and it returns to around 118.
