Tacho Problem

chris2511 · Post by **chris2511** » Sat Nov 11, 2006 3:39 am

Ok, guys, i know there a lot of threads about the 1.5L Lanos tacho problem, but i really need help on it. I did the wiring like Tim (ubuyau) did, to the point, and i get no reading at all when i hook my tacho wire up to the trigger wire, yet when i put my multimeter to the trigger wire and increase my revs when in neutral, it goes up and up like the wire works, so im totally confused, and i have no clue what to do next, i was hoping someone could help me, also i hooked my tacho up to my stereo power line so the tacho is only on when the acc is on, but u can put the tacho on when everything is off. Anyway please help so we can finally figure out this problem.

Chris.

lanowoo · Post by **lanowoo** » Sat Nov 11, 2006 4:45 am

Well so the tach may be defective? and as long as the power feed wire is hot while the car is on, then it should work fine,

chris2511 · Post by **chris2511** » Sat Nov 11, 2006 6:46 am

Ive tried it with 2 tachos and it still wont read:(

lanowoo · Post by **lanowoo** » Sat Nov 11, 2006 7:41 pm

well is the signal strong enough for the tach to pick it up. is it high enough for the tach to see thie signal

chris2511 · Post by **chris2511** » Sat Nov 11, 2006 11:02 pm

The signal goes to 500rpm, does that mean im getting half a signal?

daewoomofo · Post by **daewoomofo** » Sat Nov 11, 2006 11:55 pm

the tacho might have a setting for useing it on a 8, 6, or 4 cylinder. if its in the 8 cylinder setting it will be half signal. look to see if it has different settings

chris2511 · Post by **chris2511** » Sun Nov 12, 2006 12:11 am

No its definately on 4, and it goes up to 500rpm but it doesnt move from that spot no matter how much i rev

lanowoo · Post by **lanowoo** » Sun Nov 12, 2006 4:09 am

i have no clue why that s like that.....hmmmm....

chris2511 · Post by **chris2511** » Sun Nov 12, 2006 4:27 am

Me either, ive tried 2 tachos with it, its really weird, and as soon as i connect power to it they both go to 500rpm, and thats without the trigger wire attached to it as well, so im very confused, anyone with a working tacho plz help!!

chris2511 · Post by **chris2511** » Sun Nov 12, 2006 4:29 am

Also i ran a lead from my stereo power to the tacho, so i have power only when the car is on acc or on, but it gives power anyway, even when the car is off and the key isnt in the ignition, so where is a power line i can access that is only on when the car is switched to the on position, as i think this may be the main problem, since the manual says the tacho must have power only when the car is switched to the on position.

chris2511 · Post by **chris2511** » Mon Nov 13, 2006 2:08 am

Just rang some people who are suposed to be experts with Tachos and problems, they said they spent about 2 days trying to do it and they couldnt fit it to a Daewoo Lanos, they said it cant be done....So can anyone tell me if it can be done?

chris2511 · Post by **chris2511** » Tue Nov 14, 2006 10:46 am

BUMP.....

MMamdouh · Post by **MMamdouh** » Tue Nov 14, 2006 1:27 pm

no idea man... sorry.

MMamdouh

chris2511 · Post by **chris2511** » Wed Nov 15, 2006 7:05 am

Man this issue is annoying me, someone must know so we can all have tachos!!

MMamdouh · Post by **MMamdouh** » Wed Nov 15, 2006 10:03 am

guys who have done this went through many corses... some got OEM cluster and direct swapped it, some used Diod method and some used resistors to rectify the signal.

the funny thing is some people tried those methods and they failed so a tach on a 1.5 lanos is always a hard task.

MMamdouh