after market tach wiring
Posted: Tue Dec 25, 2012 4:08 pmhelp i have a 92 hatch with a obd2 b18b and im running a obd 1 ecu where do i get my tach signal from
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Posted: Tue Dec 25, 2012 4:08 pmPosted: Tue Dec 25, 2012 5:39 pmShould be a blue wire in the engine bay, that's where I gotten mine from. Somewhere at the top right corner I think it was.
Posted: Tue Dec 25, 2012 7:01 pmThe blue wire comig off the dizzy (next to big blk/yellow wire) is your tach signal
Also as mention above u migt have the same blue wire near the brake booster in the cluster of wire. And you can also take the signal from behind the cluster aswell
If you have a dx/cx and what not that tach less. Its already prewired for takh. Now im unsure if the wire for the tach is blue behind the cluster
Also as mention above u migt have the same blue wire near the brake booster in the cluster of wire. And you can also take the signal from behind the cluster aswell
If you have a dx/cx and what not that tach less. Its already prewired for takh. Now im unsure if the wire for the tach is blue behind the cluster
Posted: Wed Dec 26, 2012 12:00 amIt is.
ALWAYS verify a wire you're going to use. The tach wire is one of the few AC wires. Set the volmeter to AC and probe the wire and ground. With the engine running the voltage will cycle, increase RPMs and it will increase.
ALWAYS verify a wire you're going to use. The tach wire is one of the few AC wires. Set the volmeter to AC and probe the wire and ground. With the engine running the voltage will cycle, increase RPMs and it will increase.
Posted: Wed Dec 26, 2012 9:13 pmok i tried tapping the wire before is why i asked but it was because i didnt have a good connection with my wires but now that i have it hooked up its like the tach doesnt keep up with the motor i can hit the rev limiter and it only reads 6 grand like it lags