Tach and timing help

[Bryson]

Hey guys... the car is comming along my low vaccuum problem is gone and just ****ign /w it we got the timing to the point today that I drove it down the stret and ti drove pretty well i was able to peel out in my driveway.. but there are some problems.

The tach isn't working and its a 93??? Now I just went out and looked at it...the pinout I have says the tach signal is wire 3.. 5 over on the left fromt he center top row... and that is one of the 6 dash wires.... mine is free... but the weird part is that there IS a yellow/red or yellow/orange whichever it is WITH the other 5 already and I saudered it.. so obviously its the wrong one that is saudered but my Q is wtf wire is it then if not the tach signal...

problem two.. we were tryinh to set the timing with a timing light... and every time we approached the 2nd mark from the right it would run like total **** and the marks would jump around all over the place the farther I went passed the marks on the right the better it ran until it would hit a point where it would die... I don't know that my RPM is at 750 because the tach isn't working.

any suggestions?

[compression]

Do you have the diagram showing which marks on the crank are which timing intervals? You have to know that to set the timing. It is in the factory service manual. I can email you a PDF of the diagram if you hit me at [email protected]At idle, timing should be about 20 degrees advanced.

no idea on your tach though, have you tried hooking up an aftermarket one, just to see if can get a reading? mayeb the stock tach is dead.

[SpeedRacer1]

Are you sure you didnt accidentily solder the wire right next to it? The tach wire signal (pin 3 yellow with red stripe) and Coil pack output (pin 2 red with yellow stripe) are right next to each other.

If you soldered the right one then it should work. What do you mean by "mine is free?"

[Bryson]

The tach works now... I'm trying to explain it but apparently I failed. The tach wire.. the right one... was pinned in the ECU but the wire didn't go with the rest of te harness it just dangled. The 6 interior wires were all bundled and taped together but for some reason the tach wire wasn't with it.. I still have no idea what the other wire was. The car is driveable now I drove it a few times today. The timing still isn't right the car runs but feels like its lacking some power and top end... it is also boosting to 10 PSI rather than 7

[UsedToOwn240SX]

Just a recommendation on things to check:1. CAS alignment (per S14 SR service manual). Silver links lined up with marks on the marks on cam sprockets at cyl. #1 on compression cycle.2. Proper timing check (TPS unplugged, idle at 750 RPM, use a cut sparkplug wire)