The 250-4379 is a VSS divider. Some vehicles have a speed signal output that is too fast for the 250-1223 kit to recognise. This adapter interface will divide the signal by 4.
1 Review
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Tremec TKO600 VSS signal too rapid.
This worked great for getting rid of the magnets and pickup. Would not work using the straight VSS, but this in line, works perfectly