04-05-2018, 05:50 PM
Join Date: Mar 2009
Location: Georgetown, Guyana
There's a reason I used the words "as such" - yes, there is an electronic computer, which Suzuki calls the emission control computer - it does control the MCS (mixture control solenoid) on the carburetor - but as far as I'm aware, it does not perform any "on board diagnostics".
Also - I'm more than willing to admit a lack of familiarity with the Hitachi electronic feedback carbs - the Samurais we got all used Aisin carbs, not the Hitachi, which, I as far as I'm aware were only used in North America - I've seen vehicles running without the computer, with no other modifications - it's my understanding that without the computer, or with a defective MCS, the engine will just run rich.
For what it's worth - here's a link to the wiring for system over at Ack's FAQ - no CEL, and apart from the oxygen sensor, no real sensors to speak of - no coolant temp, no air temp, and for throttle position it's either closed (or idle) and wide open.
I can't help but wonder if the computer failed in such a way that the mixture solenoid was held closed, if it would run lean, or as you suggest, not run at all...
madmolly - if you're not familiar with Ack's FAQ check it out, it's a treasure trove of Suzuki information.
98 - 1.8 Mitsubishi Pajero iO
98 - 2.0 Suzuki Grand Vitara - SQ420
05 - 2.0 Suzuki Grand Vitara - JB420
15 - 2.4 Kia Sportage