90 tracker; turns over, fires, and then dies...help!

[bcbud]

Yes, it is the wiring to the little black box under the ecm or above the fuse box. Not sure what you call it, but it has two 4-wire plugs going into it. When i wiggle those wires; it clicks, then engine stops or runs very poorly. When i push wires to the left a bit, the engine starts and runs great.

[fixkick]

Yes, it is the wiring to the little black box under the ecm or above the fuse box. Not sure what you call it, but it has two 4-wire plugs going into it. When i wiggle those wires; it clicks, then engine stops or runs very poorly. When i push wires to the left a bit, the engine starts and runs great.

1990 has a main relay that is really 2 in one, main and fuel pump and has more pins.
see it there.
top corner
any loose wire there, engine will stall.

if it has pink wire, that it is fuel pump, pink is dead giveaway of that. bad wire or bad relay .

note my drawing ,does not have the gross errors of the orig.

[bcbud]

Ok. Now we are getting somewhere. Relay for fuelpump. Thank you so much.

[fixkick]

yes, in 1991 suz went to 2 relays,(vastly cheaper to buy) but yours is the integration of MAIN and fuel.
one side bad kills, the ECU and Injection
the other side bad kills fuel pump pressure, (slower effect , above fail is instant fail)

not how spark keeps going, despite, any type of main relay failures (short of fuse blowing) a very unique feature , from 91+

---

one trick to do, is to wire up 2 LEDs.
one to pink-black (pink with black stripe)
and one to blue-black
and see which one drops dead, when engine stalls.

only problem is, on cars, is how to do that. physically.
one way i use, is buy brass nails, that fit in like this probe does. jammed it ,in with wires to an led to my dash. Jerry (Sorry Germans) rigged.
I have a set of needle probes , but they fall out, so make my own, when needs.
one could test each pin 1 by one at each fail, and find the true cause. tedious but might save $150
http://www.fixkick.com/IGN_timing/Dizzytester.html



see some guy trying. not easy.






wide view
http://www.fixkick.com/ECU/89/main&FP2.jpg

---

this relay is $136 at Suzuki, parts.
rock auto just stopped selling the SMP RY-952 clone of it. it was $146.
my parts page shows this.
http://www.fixkick.com/buy-parts.html#main89

sears sold it, now stopped
amazon used to...
ebay has 3
they are dropping out..

---

one guy askes what are those dot's
I think those are the CAMI codes, for MARKET. USA,Canada, Calif. etc. my guess.