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1994 Olds Delta 88 fuel injector fuse blew?

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Old Jul 16, 2012 | 03:12 PM
  #21  
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Have you scanned for DTC'*. A malfunctioning injector will likely set a code for misfire.

I apologize if you already know this. but gettting 0 ohms resistance tells me you checked with the electrical connectors on the injector. Resistance should be around 11.4 to 12.6 ohms. You are supposed to check with a warm engine. Not hot, like when you have been driving a bit, but not cold from sitting overnight. To give you an idea, the coolant at full operating temperature is around 200*F and you want to check resistance on the injectors at around 100*F. Don't get hung up on the exact temperature, just make sure the engine isn't at full operating temperature, or cold from sitting over night.
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Old Jul 16, 2012 | 04:55 PM
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Yeah, I took the injector resistance reading with just the one connector off on the injector I was testing. I didn't know you have to disconnect all of them then take readings on each one. So that must be the reason for 0 ohms on each injector.
Thanks for the great help 2kg and the other guys that have helped on this group. And again thanks Dan for the wiring diagram. I will let ya'll know what injector ohms readings I get by tomorrow.
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Old Jul 19, 2012 | 01:06 AM
  #23  
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Hey guys, I got the fuel injector resistance readings (moderately warm engine)and all six are between 12.8 to 13.1 ohms with all inj. connectors off. What you think about this, sounds normal? I ran the engine idling after ward for 30 mins. and went 3 miles down the road and it ran ok, a little sluggish/hesitant on acceleration from a stop or low speed but no missing at all. Starts right up on first roll over and idles ok? I don't know what else to do/check at this point? I just can't totally trust it yet, though. THANK YOU FOR ALL THE GREAT HELP!
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Old Jul 19, 2012 | 08:26 AM
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Those resistance readings are good. No problem there. There is still the possibility it is a bad injector, but the problem could be intermittent. I was getting a misfire one time that came and went, and it wasn't until it was misfiring in the driveway that I was able to determine it was one of the injectors. Unless someone can come up with an idea on this one, I would continue to drive it. With a couple of spare fuses in the glove box of course.
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Old Jul 19, 2012 | 05:56 PM
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I see no other reason why he shouldn't. Unless someone can show me a schematic for that injector fuse.
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Old Jul 19, 2012 | 10:49 PM
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More Information for BUSSMANN CB21210

Should I put a 10 or 15A mini circuit breaker in place of the minifuse? If so, there is two types, #1 is auto resettable/continues to reset automatically or #2 resets itself upon circuit being powered off (would require ignition key to be turned off then back on) ?
I think this option would be better than physically getting under the passenger side dashboard to replace the fuse. It was suggested that a 15A circuit breaker would be ok to install at this point. Which type would be best for this application? Thank you
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Old Jul 20, 2012 | 04:34 AM
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If your going to put one of those in, stay with the recommended amp rating of 10. Any higher, oh boy, I'd hate to see what would happen.
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