S300 different a/f ratios at WOT (Random)
Posted: Sun Apr 21, 2013 3:33 pm
Here is the story:
My car is a Honda Crx with a b20/vtec engine currently running s300 and using Smannager 2.2.4.0 .
I have always tuned the car with success and currently rated at 263whp. Car ran 11.5@119mph.
So basically my problem is that randomly the computer is adding fuel to the program without any modifications to the car nor the program. For example, I run the car and do a wot pull and the car runs super rich usually the first pull I do after starting the car (around 10-11 a/r ratio) this is using my AEM wideband. After a few minutes (either i shut the car off or even continue driving) and I do another pull and the a/f is perfect. When I check my datalogs the inj times and duty cycles are way different from one pull to another. I have checked data logs for ect enrichments and iat enrichments and all are at 0, which is fine since all my tables are at 0 since I started to troubleshoot this problem. I dont use close loop, and there's not short/long term changes shown in the datalogs also which is fine also.I cannot pinpoint were the additional fuel is coming from.
Here is my calibration file and two data logs. One showing the car running rich and another running fine. No modifications were made to the car or the program between both pulls.
Im desperate and will appreciate any help!!!
My car is a Honda Crx with a b20/vtec engine currently running s300 and using Smannager 2.2.4.0 .
I have always tuned the car with success and currently rated at 263whp. Car ran 11.5@119mph.
So basically my problem is that randomly the computer is adding fuel to the program without any modifications to the car nor the program. For example, I run the car and do a wot pull and the car runs super rich usually the first pull I do after starting the car (around 10-11 a/r ratio) this is using my AEM wideband. After a few minutes (either i shut the car off or even continue driving) and I do another pull and the a/f is perfect. When I check my datalogs the inj times and duty cycles are way different from one pull to another. I have checked data logs for ect enrichments and iat enrichments and all are at 0, which is fine since all my tables are at 0 since I started to troubleshoot this problem. I dont use close loop, and there's not short/long term changes shown in the datalogs also which is fine also.I cannot pinpoint were the additional fuel is coming from.
Here is my calibration file and two data logs. One showing the car running rich and another running fine. No modifications were made to the car or the program between both pulls.
Im desperate and will appreciate any help!!!