No Data

Slowbrokebird

Registered User
Need help 91 SC auto new engine when plug scanner into eec to drive around in my car to check the function of things scanner says no data
 
how come the other day we had it hooked up and I thought the scanner was telling me RPM,Rich or lean on banks 1/2,temp of engine, and much more but cant remember exactly.
 
Hooked what up. Depends on the scanner. Nothing setup for OBDI can try and read a data stream. Snap On has some units that can grab a datastream as later cars (for sure after 89) do have some info they can send back.
 
I witnessed a snap-on diagnostic tool reading eec-iv info (commanded injector pulse widths was one thign I saw) at the 2006 shoot-out. I believe it was a MT2500, but can't recall specifically. I know the 1989 EEC-iv is one of the most limited of all of them. The 94/95 are going to have the most capability.
 
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