 Test Bosch Voltage Regulator?, May have a problem but not sure |
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| StarBear |
 Aug 20 2023, 06:31 PM
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#1
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Senior Member  Group: Members Posts: 1,885 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States 
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Is there any way to bench test an OEM Bosch Voltage Regulator (PNs 0190-600-006 or 0190-601-006)? It's the taller (2 1/2" or so, 3-prong mechanical unit).
I have it out of the car after some funky issues and would like to test it before fully switching it out. Have searched the forum and found no testing method. Thanks! |
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| Aerostatwv |
Aug 20 2023, 08:02 PM
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#2
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Member Group: Members Posts: 117 Joined: 13-July 11 From: WV Member No.: 13,315 Region Association: MidAtlantic Region
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I was chasing a weird idle issue that I couldn't get my head around. I ordered a voltage meter that plugs into the cigarette lighter from Amazon, I don't have the factory console w/gages. I found my voltage was spiking up to 17 volts. Thought it was a fluke and tried it in my other vehicle, it registered 14.4 volts.. So I swapped the regulator and the voltage settled back to 13 volts with minimal fluctuations. Weird thing is, my hunting idle issue has gone away..
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| StarBear |
Aug 20 2023, 08:25 PM
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#3
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Senior Member Group: Members Posts: 1,885 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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Yes, that’s weird, but then lots of our issues ( and solutions) are so.
I have the gauge and sits steady at 13.3 or so, except when idle shuts off at low rpm and full operating temp. Restarts fine. (IMG:style_emoticons/default/dry.gif) Checking multiple other causes too. |
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| 914Sixer |
Aug 21 2023, 05:51 AM
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#4
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914 Guru Group: Members Posts: 8,882 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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I can send you a solid state Bosch you can test with. Pay the shipping.
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| StarBear |
Aug 21 2023, 05:55 AM
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#5
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Senior Member Group: Members Posts: 1,885 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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QUOTE(914Sixer @ Aug 21 2023, 07:51 AM)  I can send you a solid state Bosch you can test with. Pay the shipping. Thanks for the offer, Mark. I have a spare to test the idle issue; wondering if possible to bench test the old unit also. Seems like there’s not a method to do that? |
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