1991 Honda CRX Si Intermittent Start

1991 HONDA CRX
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CLE
  • MEMBER
  • 3 POSTS
My car acts VERY weird, sometimes it starts right up, other times it does not. I replaced the starter with a junkyard one, and the same thing happens.

Ok, main wire coming from battery gets full 12 volts, when cranked it still gets full voltage.
So heres the breakdown,
1. Signal wire(from ignition) cranked unconnected 11.45 volt
2. Signal wire connected/cranked 5.4 volts
3. Main wire(from battery) 12 volts consistently.
If I jump a wire from positive battery terminal to the small signal wire on starter it starts everytime.
Mar 19, 2006 at 5:54 PM
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BRUCE HUNT
  • ✓Experienced Mechanic
  • 3,754 POSTS
I would check that all of the grounds are clean and connected with goooood contact.
Mar 20, 2006 at 5:52 AM
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MACAT
  • MEMBER
  • 17 POSTS
check out nutral safety switch under clutch pedal small button on end of switch. apply parking brake make sure it is in nutural and then depress and hold in button with your finger while starting car. if this works you have found your problem, either buy a new one or connect both wires together and by pass switch. don't realy need it anyway unless your going to have your kids in the car with you. (child safety device).

or you could have a bad fule regulator or fuel pump
Jun 6, 2006 at 12:16 PM
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Suggested Repair

Clean and tighten all ground connections so they make solid contact, especially battery and engine or starter grounds.

Conversation Summary

A 1991 Honda CRX Si starts only sometimes, and the problem continued after a used starter was installed. The main battery wire stays near 12 volts while cranking, but the ignition signal wire drops from about 11.45 volts unconnected to 5.4 volts when connected. Jumping battery positive to the starter signal terminal starts the car every time. The expert advised checking that all grounds are clean and firmly connected. Another reply suggested testing the clutch neutral safety switch and also mentioned a possible fuel regulator or fuel pump issue.

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