1992 Isuzu Rodeo Question It Won't Start!

Tiny
BBWOLF2527
  • MEMBER
  • 1992 ISUZU RODEO
  • 6 CYL
  • 4WD
  • MANUAL
  • 180,000 MILES
Fuel is not coming out of the injectors. Fuel Is going to the carb, but not into it. I recently found out that GM made the engine in my Rodeo, and I had a 1992 GMC Sonoma. I had the same exact problem with the truck. I can't remember the names of all the parts I had replaced in the GMC, but I rebuilt the carb twice, replaced the TPS, some air sensor, the map sensor, and even went as far as replacing the computer it's self. Well the truck eventually found it's way to the junk yard after I dumped $500.00 into it, to try to find the problem. Now I sit on this Rodeo with the same symptoms. I don't want to spend monies, and junk it. When it was driving it was running good, but if you pressed the gas pedal like you should it seemed to get to much gas. It would spit, and spudder. The whole car would jerk violently, and you could smell gas exspecially at lights. It never stalled. It ran fine, but if you gently pressed the gas pedal it ran perfect. In every gear, but you had to let it gradually get to speed. Thank you for your time.
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Friday, June 20th, 2008 AT 8:32 AM

3 Replies

Tiny
KHLOW2008
  • EXPERT
Hi bbwolf2527,

A bit confused with carb and injector part. Injection models do not have a carb. It has a throttle body.

If the injectors are not firing, either the injectors are faulty or the signal to fire is not forthcoming.

Check the crank and cam sensors. You could have a problem with the TPS, adjustment or part fault.
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Sunday, June 22nd, 2008 AT 3:49 AM
Tiny
BBWOLF2527
  • MEMBER
I say carb, and injectors because it has one of those weird crossover piece of junk carbs. You know the one that has a carb with two injectors on top right over the butterflies. Anyways I got lucky with this one, and maybe here's some info you can pass on. The inside fuse box has a fuse called a "room" fuse. In the owners manual it says dome, but the fuse door says room. I don't know what room stands for, but it is a 10 amp fuse in the third position of the fuse box. It controlls the dome light, the key in ignition buzzer, and apperently the injectors. Once changed the Rodeo started with no problems, and ran fine all day. However to my new problem. When I turn on my head lights smoke bellows out from behind the dash. The smell is of corse burning wires. I turned them off before any serious damage. Would you happen to know what wires I should look for, and what would cause them to get so hot? Thank you for your time.
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Sunday, June 22nd, 2008 AT 7:45 AM
Tiny
KHLOW2008
  • EXPERT
Hi bbwolf2527,

Glad that you found out your problem.

That is called the dual point injection system.

Room = dome, the Japanese are quite confusing at times.

If you turn on the head lights and it heats up, most probably you need to check the light switch connectors near the fuse box. The headlights utilises a heavy load and any loose connections would cause heating and smoke.
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Sunday, June 22nd, 2008 AT 8:21 AM

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