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08-12-2014, 09:12 AM | #1 |
Not Yet Wild
Join Date: Jul 2014
Posts: 38
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2008 prec "Main welded" slow speed
so we have a 2008 prec that goes into limp mode after setting "Main welded" code? we replace solenoid and still same issue any and all advice would be greatly appreciated thanks in advance. Joe
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08-12-2014, 09:47 AM | #2 |
Medicare Recipient
Join Date: Jun 2011
Location: West Michigan
Posts: 3,541
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Re: 2008 prec "Main welded" slow speed
. . check other thread . . I posted a response there . .
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08-12-2014, 12:26 PM | #3 |
Not Yet Wild
Join Date: Jul 2014
Posts: 38
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Re: 2008 prec "Main welded" slow speed
yes still has same porblem we have changed solenoid, cleared codes seems to come back more upon slow throttle engaugement. does not set in history is a "current" code that will clear upon key off/on . thanks again Joe
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08-19-2014, 11:00 AM | #4 |
Not Yet Wild
Join Date: Jul 2014
Posts: 38
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Re: 2008 prec "Main welded" slow speed
ok here basically what has been done. we converted the car to 8V batts and installed lighting kit and this prob occured. Since we have changed EVERYTHING out and still same prob. OBC, multiple solenoids, controller, speed sensor and magnet and motor. Itw ill only set "Main Welded' if you depress pedal slowly or even at a normal rate, if you depress pedal rapidly it will not set code and runs fine. Any help would be greatly appreciated. Thanks in advance Joe
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08-19-2014, 11:14 AM | #5 |
DS Drivers Club Founder
Join Date: Jul 2013
Location: Upstate NY
Posts: 3,428
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Re: 2008 prec "Main welded" slow speed
Have you tried swapping MCORs?
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08-19-2014, 11:49 AM | #6 |
Gone Wild
Join Date: Jan 2014
Location: Lafayette, Louisiana
Posts: 1,677
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Re: 2008 prec "Main welded" slow speed
Main welded" WHAT IS THIS CODE FOR?
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08-19-2014, 12:29 PM | #7 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: 2008 prec "Main welded" slow speed
Did You check if the diode in line with the Tow/Run switch has failed in the closed position?
The "Main Welded" is the way the controller handles the scenario when it detects that it has dropped the solenoid coil voltage but there is still current flowing thru the power circuit. The program assumes this can only happen if the main contacts in the solenoid are "welded" together. The problem is that it is a false condition usually triggered by the Regen feature raising the voltage on the motor side higher than the battery side of the controller. Last edited by Sergio; 08-19-2014 at 12:34 PM.. Reason: additional information added |
08-19-2014, 12:45 PM | #8 |
Gone Wild
Join Date: Jan 2014
Location: Lafayette, Louisiana
Posts: 1,677
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Re: 2008 prec "Main welded" slow speed
So If you disconnect one of the big cables from solenoid, do you still get the same code? If so your saying the regen loop is messed up most likely. Being the controller, motor, solenoid was replaced that doesn't leave much to go wrong lol. I suspect lots of wholesale changes was made here, which makes web troubleshooting difficult when the tiniest detail is left off.
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08-19-2014, 12:49 PM | #9 |
Gone Wild
Join Date: Jan 2014
Location: Lafayette, Louisiana
Posts: 1,677
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Re: 2008 prec "Main welded" slow speed
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08-19-2014, 01:31 PM | #10 |
Not Yet Wild
Join Date: Jul 2014
Posts: 38
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Re: 2008 prec "Main welded" slow speed
ok so yes we swapped MCOR.(sorry forgot to list that) I will check the diode and disco the light kit. no inverter was installed. Thanks again guys
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