Factory computers usually only use the detonation sensor when in cruise maps. They lean off the fuel to a higher a/f ratio for economy and let the timing into closed loop control. This lets the timing increase until detonation and then drops the timing back a number of degrees until it stops and then does it all over again 100 times a second.
Are you running an aftermarket computer? Just tune it on the dyno, get your a/f ratios healthy and they will be able(if they are good) to detect detonation. If the detonation is still there just take some timing off in the low boost points. ie 2,4&6 psi.
If factory computer you may have to adjust the distributer back about 4 degrees or until it stops detonating. You will loose a small amount of power with the reduction in timing at the top end but its better than having a blown engine.
Mon, 05 August 2002 00:03
