Simtek ecu and lambda sensor
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Simtek ecu and lambda sensor
Does the simtek ecu on an early classic sti use or rely on the original lambda for anything at all???
Got serious overfueling issues and cant seem to work out why
Thanks in advance
Got serious overfueling issues and cant seem to work out why
Thanks in advance
#3
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Yes if enabled will use it within pre-defined load and rpm limits to fuel correct to lambda one. Has it been mapped recently? If you are having fueling problems or you suspect so then pop it back to the Simtek mapper that sorted it, or if they can't sort it give me a tinkle as I'm not too far away from you.
Graham
Graham
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Will it affect the car detrementily if i unplug the lambda sensor, will the simtek then revert to closed loop lambda?? Will that improve the fuel economy until i can get the car sorted properly.
#7
Is it idling smoothly?
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No, the idle is far from smooth, very lumpy and the car is just horrible to drive on light throttle, very very jerky, im gonna have to get it looked at as soon as possible so that i feel safe with using the car to get to work and back until i can get it sorted fully.
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Yeh, just the one on mine in headers i believe, however, ive been out of work and only just started a new job so cash is tight, was looking for a quick fix till i can afford to sort properly.
#13
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The Lambda sensor on your car was originally located in the headers collector close to the driver's front wheel. Sometimes these narrow band Lambda sensors have been relocated to the downpipe and the hole for the Lambda sensor in the collector bunged.
Do not buy a dealer Lambda sensor as it is a big rip off but you can get one for £50 or £60 from Andrew Page or similar motor factors but ensure it is a Bosch item.
The ECU runs in closed loop when off boost and the purpose of the Lambda sensor is to allow the fuelling to be around 14.5 AFR during off boost operation.
If your Lambda sensor is defective you are now grossly over fuelling and a new Lambda sensor should be fitted sooner rather than later as you are probably suffering bore wash at present which is not a good thing.
Changing the Lambda sensor is relatively simple.
Do not buy a dealer Lambda sensor as it is a big rip off but you can get one for £50 or £60 from Andrew Page or similar motor factors but ensure it is a Bosch item.
The ECU runs in closed loop when off boost and the purpose of the Lambda sensor is to allow the fuelling to be around 14.5 AFR during off boost operation.
If your Lambda sensor is defective you are now grossly over fuelling and a new Lambda sensor should be fitted sooner rather than later as you are probably suffering bore wash at present which is not a good thing.
Changing the Lambda sensor is relatively simple.
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