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Aricjm15
Joined: 03 Jun 2007
Posts: 8
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 Posted: Sat Sep 19, 2009 11:21 am Post subject: Hydra keeps turning off. Need help |
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My car keeps turning off while driving and sometimes at a stop. Its as if I turned the key to the off position. Sometimes the CEL illuminates other times it does not. While driving most of the time the car recovers and the only way you know it happened is because it feels like a terrible missfire and the Tach drops to 0. The other day the car cut out at 80mph and I needed to stop the car completely before I could restart it.
What could be wrong with the unit? I have checked all of the wiring in the PnP harness and all the wiring under the hood for a possible short but I was unable to find anything.
Need more ideas. |
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Aricjm15
Joined: 03 Jun 2007
Posts: 8
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| Posted: Sat Sep 19, 2009 1:03 pm Post subject: |
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| forgot to mention this is 2.17 version in a mazdaspeed miata. |
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MR Controls
Joined: 22 Oct 2004
Posts: 172
Location: Florida
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| Posted: Sat Sep 19, 2009 8:57 pm Post subject: |
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I'd be looking for potential breaks. Much moe likely than shorts.
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http://www.mrcontrols.com |
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Aricjm15
Joined: 03 Jun 2007
Posts: 8
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| Posted: Wed Sep 23, 2009 9:15 am Post subject: |
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No breaks can be found in anything. When this happens the radio also cuts out similar to an over volt situation.
I am leaning towards the immobilizer or something wrong with the alternator or the way the hydra controls the alternator. |
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MR Controls
Joined: 22 Oct 2004
Posts: 172
Location: Florida
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| Posted: Wed Sep 23, 2009 4:23 pm Post subject: |
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You probably need to adjust your input follower feedback map to bring down the charging voltage.
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Aricjm15
Joined: 03 Jun 2007
Posts: 8
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| Posted: Wed Sep 23, 2009 8:11 pm Post subject: |
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| Data logged it today, it just stopped logging when the event happened so the log shows nothing. This is a new problem by the way, no reason for any settings in the hydra to randomly change after working for two years. |
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HydraEMS-NA
Site Admin
Joined: 18 Oct 2004
Posts: 566
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| Posted: Tue Oct 27, 2009 10:22 am Post subject: |
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| If the hydra loses power it will shut off. However it seems to be an overcharging problem which will shut the ecu down also. |
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