QuestionQUESTION: ? Is it normal or possible to have a relay go bad ? I followed the fuel pump pos wire to a plug on the relay that I unpluged I unpluged the larger plug next to it and checked for power with key on " useing my meter I found 12 volt positive I temerary put a jump wire from the 12 volt positive to the fule pump wire in the other relay plug the pump fired up " should I replace the relay or is the faut in the brain "comuter"
ANSWER: Relays do go bad occasionally.
If the fuel pump relay is the problem, be aware that it's highly probable that the ECM (brain, or computer) probably grounds the coil of the relay, and the coil is probably powered by an ignition on circuit. In a great number of cases the "power" that runs the fuel pump comes from the battery or a bus circuit that may or may not be switched. You need an accurate wiring diagram (to the best of my knowledge, ONLY available in a Suzuki Factory Manual) so you can determine what's supposed to happen, and when, and controlled/switched by what.
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QUESTION: I want to thank David Scott for his fast responce to my ? reguarding the 1989 suzuki sidekick engine 1.60 1 hour after I emailed you I picked up a 1989 suzuki sidekick you could say a twin brother to mine I purchased 2 days ago
with a tow -bar for $300.00 cash on the dash " 1st thing I did was pull out the relay mmm" sadly no change I also received a Haynes ManualSuzuki 1989 Sidekick /X-90 the diagram shows the positive lead from the fule pump leads to the relay and from the relay on the wiring diagram the wire BLU/BLK leads TO Heated Oxygen Senor 1, Heated Oxygen Senor 2 ,Evap canister vent solenoid , Evap tank pressure control solenoid valve , Evap canister purge valve ,Exhaust gas recirulation valve , idle air control valve ,
read all evening but no positive change
the Throttle Position sensor or next fuel pressure regulator , last the PMC ,the brain , the comuter It's like playing chess your move mmmm "Your's Sincerly Dennis
AnswerFind and disconnect each of these devices one at a time, until the cause of the problem goes away. Carefully inspect the wires for possible shorts where the harness bends around things.
As I remember, the fuel pressure regulator is not electrical.
Seriously, go online and see if you can find a manual download of a
Suzuki manual for your vehicle. The haines and chilton manuals are ok for general stuff, but basically useless for fuel injection and emissions equipment compared to the factory manual.
the factory manuals I have for my vehicles (samurais) describe the function of the device under specific circumstances. You can "go to school" with the factory manual as a general rule.
