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A rather boring honk, but it should be loud and clear.

It should work with key on or off....
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92LRC Bad Opti? Part 2
Guru Newb
Weston, FL
88 Posts
Member since:
2008/1/2 0:00



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I posted a couple of weeks ago that I thought my Opti was going First Post

I cleaned up and checked all the connections but I'm still stalling after a bit.

I started hearing popping sounds coming from the exhaust. I had heard them before but not as often

Listen Here

Could this be part of the problem?

This is what happens when the stalling starts after the car has warmed up. NOte that the jumps in RPMS are happening by themselves I'm not on the accel.

Stall 1

Stall 2

Not throwing any codes, none that are holding anyway. And it never fails to start, it just won't stay lit.

I don't want to rush right out and change the Opti and throw $ at the problem.

Thanks in advance for any input.

Serge
Posted on: 2010/6/12 15:25
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bogus Re: Bad Opti? Part 2
Grand Imperial Pooh-Bah
San Pedro, CA
20859 Posts
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2005/9/7 0:00



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Ah... start with the coil and ignition control module.

They mount together on the right front cylinder head. Inspect the coil wire to the opti and the harness to the ICM.

Also, inspect the harness to the opti from the ECM. This is a 4 wire bundle that runs past the injectors and down into the water pump.

If you are not getting a code, you could have some of the worst possible carbon tracing... EVER. And that would require a new opti at this point.
Posted on: 2010/6/12 17:52
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Education is the best tool to overcome irrational fear. - me

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1Fast04Vert Re: Bad Opti? Part 2
Elite Guru
The hills of N. Georgia
2424 Posts
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Sudden unaccountable jumps in RPMs would indicate the ECM, unless it is a Toyota, in which case check the floormats.
Posted on: 2010/6/12 17:59
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bogus Re: Bad Opti? Part 2
Grand Imperial Pooh-Bah
San Pedro, CA
20859 Posts
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RPM jumps are from carbon tracing, too. But I can't prove it... photobucket hates me.
Posted on: 2010/6/12 18:15
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Education is the best tool to overcome irrational fear. - me

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92LRC Re: Bad Opti? Part 2
Guru Newb
Weston, FL
88 Posts
Member since:
2008/1/2 0:00



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Quote:

95vette wrote:
Sudden unaccountable jumps in RPMs would indicate the ECM, unless it is a Toyota, in which case check the floormats.


would a dying opti not do that as well?

The thought of a bad ECM makes me want it to be the Opti. Aren't ECM's for 92's pretty much impossible to find?
Posted on: 2010/6/12 20:48
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92LRC Re: Bad Opti? Part 2
Guru Newb
Weston, FL
88 Posts
Member since:
2008/1/2 0:00



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Quote:

bogus wrote:
Ah... start with the coil and ignition control module.

They mount together on the right front cylinder head. Inspect the coil wire to the opti and the harness to the ICM.

Also, inspect the harness to the opti from the ECM. This is a 4 wire bundle that runs past the injectors and down into the water pump.

If you are not getting a code, you could have some of the worst possible carbon tracing... EVER. And that would require a new opti at this point.


Gonna give the ignition and coil tomorrow.

Explain carbon tracing please.

Thanks
Posted on: 2010/6/12 20:49
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BillH Re: Bad Opti? Part 2
The Stig Moderator
Reno
22702 Posts
Member since:
2007/12/25 0:00



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Quote:

92LRC wrote:
Aren't ECM's for 92's pretty much impossible to find?


Yea,very hard to find but, these guys can test and/or rebuild yours.
http://www.siaelec.com
Posted on: 2010/6/12 23:04
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