Hello, Newbie from Oregon

[dave w]

http://gearhead-efi.com/Fuel-Injecti...light=16196396

OBD1 Scanning/Datalogging.. '94 TBI, 5-speed manual. (gearhead-efi.com)

[g00se]

Thanks Dave! I really appreciate it! I searched for the 16196396 BDTP and wasn't able to find anything. I will give it a try!

[g00se]

Thanks again for all the help! I got it working today --but admittedly, there is a lot there to understand.
My trucks issue is that it is failing for high HC
high HC.jpg

Here are a couple screen shots of it cold after start up -and hot after warming up. Does this look right to you? Could anything you see cause high HC?

Cold pics
Cold a.png
Cold b.png

Hot pics
Hot a.png
Hot b.png

[dave w]

Information link for high HC causes: https://www.smogtips.com/failed-high...carbons-HC.cfm

I recommend starting with a compression test first, it's a low cost test and will help verify the engine is OK. Checking / reading the spark plugs during the compression test is a good plan. Maybe have a new set of plugs ready to install after the compression test is a good plan too.

dave w