2nd Gen EFI in a 1st Gen
#31
02-16-2013, 03:16 PM
this is probably the best idea anyways. then you can put your headlights and other things on relays that car companies did not put on relays until a lot later.
That is exactly what I'll do. Might as well put all my heavy load items on relays. Headlights, heater blower, ASD...ext.
you might be able to use a vehicle speed sensor out of a 91 or so dodge ram. should just screw into the transfer case but then you would also have to get an electric speedo unless you could find a speed sensor out of a 88-89 ram or 88-93 Dakota. they are suppose to be able to be hooked up to mechanical or electrical speedo's.
That is exactly what I'll do. Might as well put all my heavy load items on relays. Headlights, heater blower, ASD...ext.
you might be able to use a vehicle speed sensor out of a 91 or so dodge ram. should just screw into the transfer case but then you would also have to get an electric speedo unless you could find a speed sensor out of a 88-89 ram or 88-93 Dakota. they are suppose to be able to be hooked up to mechanical or electrical speedo's.
Anything else seem like a bad idea on my list? I'm more than open to other suggestions. Thanks guys.
#32
02-16-2013, 05:23 PM
Am I going to have any trouble from not hooking up gauges/warning lamps? For example: I had an 88 Ford truck that wouldnt charge and destroyed several alternators before I figured out that the "Battery" warning idiot light had burned out. That was the only problem. Is Dodge the same way, or does it not care if the warning light bulb is burned out (non-existant)?
#34
02-16-2013, 07:32 PM
You think if I wire the oil pressure switch and temp sensor from the '94 to my '78 cluster, it will work? That would be great!
#35
02-16-2013, 07:42 PM
Legend
i would check the current instrument cluster and see if there is a low oil pressure light hole or something. i know i set it up so that my maintance reminder thing lights up when my electric fans turn on. i would guess your truck might have a couple extra lights like that. i am pretty sure the new sensors should work with the old gauges. some people install the new sensors so they can have gauge and dummy light.
http://www.allpar.com/history/mopar/electrical2.html
http://www.allpar.com/history/mopar/electrical2.html
#36
02-16-2013, 09:03 PM
Oil pressure, and engine temp will hook right up and work just fine. There already is a low oil pressure light in the lower right side of the speedo. (whichever big gauge is on the left, can't recall which right now.) Fuel gauge will of course work, my only question would be on the voltmeter....... not sure how you would handle that one. Don't waste the money on the additional lights. Don't need 'em.
#37
02-16-2013, 09:28 PM
Legend
#38
02-16-2013, 09:42 PM
#39
02-16-2013, 09:46 PM
Legend
#40
02-17-2013, 08:10 AM
Is my ammeter/voltmeter going to function properly? I know that with the factory '78 setup, if my wires on the back of the instrument cluster going to the ammeter come loose, the whole truck stops working. Wont even crank.
wolfie - Yes, I am going to use the stock fuel sending unit and install an inline pump. That way, as you mentioned, my fuel gauge will work as intended.
wolfie - Yes, I am going to use the stock fuel sending unit and install an inline pump. That way, as you mentioned, my fuel gauge will work as intended.
Last edited by Scooter78; 02-17-2013 at 08:12 AM.