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Old 05-10-2020, 05:03 AM   #2
4/86 SE-V6 2 tone 4x4 HB
Deerhurst's Avatar
Join Date: Apr 2013
Location: Oregon
Posts: 7,265
Vehicle: 1986.5 SE-V6 4WD D21, 2003 Audi A4 Avant 3.0 Quattro
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Most folks with TBI either stay TBI or go carbed.

The 93 is MPFI which means at very least the fuel injection system is different as far as the wiring. The ECM is also different as there are more injectors. 93 was a turning point with the D#1, so likely with the WD21 too, where the speedo changed from mechanical to electronic so the instrument cluster and speed sensor circuit will be different. Lotta little things were changed.

I'm not sure when it changed but with the R50 Pathfinder the location of the alternator and power steering pump was on different sides of the motor from the truck. That would complicate wiring too as the pigtail would be in the wrong spot.

I am planning a similar swap but more custom once I find a seller with a blower that isn't a flake. When/if I get to do this I will do a full write-up.

What is your end goal? Motor swap? MPFI swap?

Motor swap is easy. Swap the block and put your injection system and intake back on. MPFI swap will turn into custom wiring and in my case a custom ECM and tune.
1986.5 SE-V6 4X4 D21 Hardbody
Pacesetter Long Tube Headers
Morimoto Mini D2S HID Projectors and Hella 500s
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