Has trouble starting

[Ian Masar]

So a few days My cappuccino has started to have trouble starting, it will crank and then sit at around 100-300rpm and then i have to press the accelerator fully turn it on! Noticeably a huge wave of gas or oil comes out of the exhaust and cause a big cloud for a few seconds and then goes back to normal. Its also having more trouble when it is colder outside, and starts up fine once the engine is up to temperature. This also seems to have created low idling rpms of about 900-1100. I've looked into the manual for a bit and found 4 things that could be causing the problem! A Faulty Fast Idle Air Valve, Fuel pressure out of specification, Poor performance of IAT sensor, ECT sensor or MAP sensor, or a Faulty ECM. Has anyone else had this trouble with their cappuccinos and if so what did you do to fix it?

[Ian Linden]

I have not heard of this issue with Cappos, but the IAT sensor would be a good place to start.

It's fairly cheap in Japan, so probably widely used and could still be available from Suzuki GB. However, if not, https://en.impex-jp.com/parts/new/search.html?partNo=13650-61B00

I see in the Parts Catalog that it also used as the ECT sensor, so one could possibly first try swapping them to see if it makes a difference.

[Ian Masar]

Thanks Ian!

I'll take a look at the IAT sensor first!

The fast idle air system does seem to look right. so i'll take a look at your suggestion!

[Ian Linden]

Page 6E-68 of the Service Manual gives the method and data for testing those sensors.
Needs a thermometer, an ohmmeter and a kitchen hotplate and saucepan.

[Ian Masar]

Thanks Ian!

Im about to test the fuel pressure to make sure its not that, after that i'll try out the IAT sensor