Engine not running right? see if we can help you!
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Ladaman
- Suzuki Guru
- Posts: 1090
- Joined: Thu Sep 08, 2011 10:56 pm
- Location: Huddersfield, W. Yorkshire
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by Ladaman » Thu May 23, 2013 10:55 pm
Rhinoman wrote:During normal running the ECU will drive the mixture alternately rich and lean and measure the time taken for the sensor to respond, from that it deduces if the mixture requires adjusting. If the first sensor isn't fitted and the ECU does not see the reading change with the mixture then it will set a fault code and revert to base settings - how much effect that has depends on the condition of the engine. The second sensor is used to test the effectiveness of the cat, no sensor will flag a fault but you can connect the sensor and leave it in free air, that's usually enough to cheat it.
Sounds like a plan.
Thanks for the pointers.
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Ignis Sport 1.5 16V; Jimny gearbox, 410 transfer box; 5.125:1 Vitara diffs; rear Lockright, Rob Storr full float rear axle, rear discs, YJ springs, virtual lift, 31" Grizzly Claws, beadlock rims, +50mm LR arches, LED rear lights, LED roof spots, bucket seats, Luke harnesses, internal cage
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ScottieJ
- The Boss
- Posts: 11635
- Joined: Tue Apr 15, 2008 12:13 pm
- Location: Chippenham, wiltshire
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by ScottieJ » Thu May 23, 2013 11:03 pm
I've seen spacers that you can fit to space the 02 sensor out from the exhaust so that it is not in the direct flow of the exhaust gas to cheat the system as well, not sure how well they work though?
http://www.just-performance.co.uk/o2-ox ... der-de-cat
