Let's solve my 20V conversion problems
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03-23-2010, 05:37 PM
Post: #6
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Dialling the richness out....
If you are running a programmable ECU, you have the ability to set the
fuel map to whatever A/F ratio you choose. If you also have a WBO2 sensor and gauge, you can also monitor your A/F ratio to see where it is running rich, and make the appropriate adjustments to the fuel map. In many cases, the ECU can run closed loop with the WBO2 sensor to automatically adjust the fuel map to achieve your target A/F ratio. Factory ECU´s run closed loop with the narrow band sensor, but they rely on the sensor putting out the correct voltage. If the sensor is old and out of spec, the ECU can run rich. They also run open loop (and richer) after about 80% throttle opening (richer for more power and greater cooling). However, I don´t know if the OMEX does this, or if you O2 sensor is wide band or narrow band (factory style). If it is narrow band, they are quite rugged units. If they get carboned up, you can sometimes clean them up externally with a wire brush, and then heat the sensor end with a butane torch to bring them back to life. If yours hasn´t been replaced for 50,000 miles its time for a new one Anyways, a dyno tune will sort out your fuel map. Cheers... jondee86 PS: Yes, I am on holiday, so I have a bit of time on my hands |
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Messages In This Thread |
Let's solve my 20V conversion problems - Jezza_hr - 03-23-2010, 12:32 AM
One thing at a time.... - jondee86 - 03-23-2010, 02:01 AM
Something about oil consumption... - jondee86 - 03-23-2010, 04:54 PM
Does anyone need a high pressure radiator cap ?? - jondee86 - 03-23-2010, 05:15 PM
Dialling the richness out.... - jondee86 - 03-23-2010 05:37 PM
In a reflective mood... - jondee86 - 03-24-2010, 10:15 PM
[] - Miguel - Newera - 04-01-2010, 04:02 AM
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