Just bought an '88 Pickup... a few questions

[rdlsz24]

Hey guys I'm new to the whole truck (and Toyota) scene, so I figured I would come here to get some help. I just bought an '88 Pickup, and it has the whole dash and instument cluster out of a 4Runner of around the same year. Now the dash fits perfect and everything, but the tach does not work and the fuel gauge always shows full (the speedometer does work, thankfully). I have no problem taking it apart to fix it, but I need to know what may be the problem. The guy I bought it from said he has all harnesses and plugs connected. Is there something else I need to wire, or something that may not be hooked up properly? It is comes down to it, I guess I could always run a wire from the tach to the distributer, but I would think there has got to be a way to hook it up since the Pickup and 4Runner are pretty much the same thing (from what I have read... correct me if I'm wrong).

Any suggestions?

Thanks,
Rob

[sefus]

there is some trick to this, trying using the search function of the forums ans search for guage cluster swap or something like that. try on here and at yotatech.com

[texas12]

I have done the cluster swap from a non-tach cluster to a tach cluster. It is not plug and play like some ebay auctions tell you. Does your oil pressure guage work? That is another difference on the clusters. Without tach just had a pressure switch (idiot light) and with tach has a pressure sender.
To get the tach to work, a wire MUST be run from coil (-) to connector A pin 5. If there is a wire there, you need to cut the wire and splice in from coil (or push out pin).
To get the fuel guage to work, on connector C pin 6 needs to be moved to pin location 5.
PM me with an email address if you have more and I will send you what I have for documentation. I was going from 4runner to 4runner with ECT and there is alittle more involved on going to a tach cluster.
Mine is now fully operational except for the low fuel warning. The tach cluster did not have a warning window to display low fuel so I will setup my own.
It is a fun and useful project, but if done wrong can cause problems. I fried my oil pressure guage because on the swap, the back door unlock switch went to the oil pressure guage. It applied a short curcuit to the guage which sent the guage to max and started smoking the wire wound metallic.