Strange A/F after 4500rpm or 5800rpm

menfou · Post by **menfou** » Tue Sep 19, 2006 12:41 am

Hello,

I tuned 30 K20A and no problem
I tuned my Civic Turbo with 525whp, and no problem.

I removed the turbo Kit on my Civic, and I have a strange A/F.
I use the stock calibration for Civic-europe, the A/F is between 12 and 13.2, but after 4500rpm my AEM gauge says more than 18:1, and if I add 50% the A/F is always > 18:1.
With the stock calibration and this strange value, my car do 170whp, the dyno looks good, it's only the AEM gauge value the problem.

I think the AEM gauge or the AEM sensor has a problem, but I don't know why it's only between 4500 and 9000rpm

Post by **Spunkster** » Tue Sep 19, 2006 9:24 am

I would suggest testing using a different Wideband to see if the AEM is just not workgin correctly.

menfou · Post by **menfou** » Wed Sep 20, 2006 5:26 am

I changed my aem wideband for a other aem wideband, and it's ok now.