Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

Mart · 05-22-2009, 12:32 PM

Hi,

just put my OBDuino setup (ISO Diagram) under the scope. We've checked at the TX pin of the arduino and the signal respect the ISO9141. BUT at the ISO pin of the mc33290, we've checked and the signal is inverted and do not respect the ISO9141. No surprise why it doesnt work so far.

Obviously, i thought the fastinit KWP2000 style was working but it isnt

.

Anyone have a clue?

05-22-2009, 12:32 PM	#382 (permalink)
Mart EcoModding Lurker Join Date: May 2009 Location: Montreal Posts: 12 Thanks: 0 Thanked 0 Times in 0 Posts	Hi, just put my OBDuino setup (ISO Diagram) under the scope. We've checked at the TX pin of the arduino and the signal respect the ISO9141. BUT at the ISO pin of the mc33290, we've checked and the signal is inverted and do not respect the ISO9141. No surprise why it doesnt work so far. Obviously, i thought the fastinit KWP2000 style was working but it isnt . Anyone have a clue? Last edited by Mart; 05-22-2009 at 03:19 PM..