AEM
Might be nice to cut back the BS and get to the facts. The UEGO set up consists of up to 3 parts. A sensor that either replaces your primary O2 sensor or is installed alongside it, a controller that ensures that it is maintained at a constant temperature and correlates the output, and a gauge that displays the result.
It is possible to buy the controller and the sensor (that's what I have), a gauge with the controller built in and a sensor (the more common option) or an AEM ECU with controller built in and I believe it is supposed to come with the sensor.
If you have the controller and sensor there is a version of the gauge that can be used with it. I expect you could use that gauge with the ECU with built in controller but can't confirm it.
If you have the UEGO controller and sensor (regardless of whether the controller is standalone, built into a gauge, or built into the AEM ECU) you can use it's signal for tuning on the dyno but you can also use the signal as one of the parameters in the AEM tuning.
However, just adding an UEGO to you AEM ECU will not improve starting.
It is possible to buy the controller and the sensor (that's what I have), a gauge with the controller built in and a sensor (the more common option) or an AEM ECU with controller built in and I believe it is supposed to come with the sensor.
If you have the controller and sensor there is a version of the gauge that can be used with it. I expect you could use that gauge with the ECU with built in controller but can't confirm it.
If you have the UEGO controller and sensor (regardless of whether the controller is standalone, built into a gauge, or built into the AEM ECU) you can use it's signal for tuning on the dyno but you can also use the signal as one of the parameters in the AEM tuning.
However, just adding an UEGO to you AEM ECU will not improve starting.
ON my box it says 30-1052 sn0037 those are the only numbers on the box if this helps maybe somebody can give more info........and i heard you cant use the regular wideband from the dyno because its not as accurate? now can i just use the regular dyno wideband thats all i have used before i didnt have to purchase a seperate wideband... thanks for your hepl guys!
Originally Posted by AusS2000,Mar 23 2005, 12:00 AM
Might be nice to cut back the BS and get to the facts. The UEGO set up consists of up to 3 parts. A sensor that either replaces your primary O2 sensor or is installed alongside it, a controller that ensures that it is maintained at a constant temperature and correlates the output, and a gauge that displays the result.
It is possible to buy the controller and the sensor (that's what I have), a gauge with the controller built in and a sensor (the more common option) or an AEM ECU with controller built in and I believe it is supposed to come with the sensor.
If you have the controller and sensor there is a version of the gauge that can be used with it. I expect you could use that gauge with the ECU with built in controller but can't confirm it.
If you have the UEGO controller and sensor (regardless of whether the controller is standalone, built into a gauge, or built into the AEM ECU) you can use it's signal for tuning on the dyno but you can also use the signal as one of the parameters in the AEM tuning.
However, just adding an UEGO to you AEM ECU will not improve starting.
It is possible to buy the controller and the sensor (that's what I have), a gauge with the controller built in and a sensor (the more common option) or an AEM ECU with controller built in and I believe it is supposed to come with the sensor.
If you have the controller and sensor there is a version of the gauge that can be used with it. I expect you could use that gauge with the ECU with built in controller but can't confirm it.
If you have the UEGO controller and sensor (regardless of whether the controller is standalone, built into a gauge, or built into the AEM ECU) you can use it's signal for tuning on the dyno but you can also use the signal as one of the parameters in the AEM tuning.
However, just adding an UEGO to you AEM ECU will not improve starting.
Yes I can try. There is a slight delay in starting with the non UEGO ecu in comparison with the oem ecu. I have observed this myself on anothers vehicle and was told that it is to do with a delay in the AEM's recept of information in the starting process. When I discussed this with UL, who also tunes the other's car, he told me that the intergraded UEGO solved this issue and would start like the oem ecu. I certainly do not want to expand false information and appreciate your apparent desire to support disseminating valid information. I will be glad to report back over the next several weeks as I go through the process of installing a SC and an AEM with intergraded UEGO. I will also ask for further clarification of the benefits of this ecu when I get it tuned.
I'm not questioning whether or not the new EMS starts better, just saying that it has nothing to do with having a built in UEGO.
The UEGO senses the amount of oxygen in the exhaust and from that reports the A/F ratio. But to do this the engine has to be already running and the UEGO up to temperature (takes about 20 seconds from cold start).
It's a bit like saying the new 747 is 20% more fuel efficient and has full length beds in business class. Then extrapolating from these facts that the reason the new 747 is 20% more efficient is because of the full length beds in business class.
The UEGO senses the amount of oxygen in the exhaust and from that reports the A/F ratio. But to do this the engine has to be already running and the UEGO up to temperature (takes about 20 seconds from cold start).
It's a bit like saying the new 747 is 20% more fuel efficient and has full length beds in business class. Then extrapolating from these facts that the reason the new 747 is 20% more efficient is because of the full length beds in business class.
Originally Posted by casterdog,Mar 24 2005, 07:39 AM
When I discussed this with UL, who also tunes the other's car, he told me that the intergraded UEGO solved this issue and would start like the oem ecu.
Are you or UL saying that the 1052U will start quicker than 1012?
I have the 1012 and I hate this issue, which need a little bit more crank before you get spark/fuel signal. I did some signal test before and I believe that this is caused by the hall effect crank angle sensor. Other than that starting is not a problem for me.
I've heard that some people sent their 1012 unit to aem to get this fix with success. May be you and ul are right that the 1052U is a better version. However this means that aem should have done a recall on their 1012 units
Yes I was told by UL that the 30-1052U will start like the oem ecu. As stated above I will report back in the next several weeks once I have first hand experience and more facts to share. As for AusS2000, I will do my best to avoid multicolinearity.



