Hi, I have a automatic 1995 Z28, no air pump, msd ignition, aftermarket exhaust. Bought this thing May 2021 as a project, and fun car for the wife. It seems to have a low rpm stumble when driving around 50mph, and after drove for a while it seems to idle rough. What I got out of the scan is that something is definitely wrong.
I noticed at random places of the scan it gives very obscure data (line 1337 for example)
New battery ac delco, old one was dead
New optispark petri, had leaking waterpump, figured it was dead
New plugs tr55, tune up
New Wires msd, tune up
New Coil msd, old one had post corroded off
2 New denso 02's, replaced bosch
New temp sensors ac delco
New coil wire
New egr, old one had ripped bellow
New intake boot, old one was ripped
Fuel pressure tested good

Highest pull was 4982rpm, sooo close.

Thanks, Ben

 

I sent you a Private Message.

 

Updated Scan, if anybody notices something. Thanks

 

Sent a PM on 8/25

 

Pm sent