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hold light/rev counter
Posted: Wed Jun 11, 2014 10:44 am
by larry787
Hi all I could really do with some help with a little problem I have.
Most of the time my Bongo runs really well with no issues then for no reason the rev counter goes all wibbly wobbly the hold light starts flashing and the gearbox (auto) drops down i cog and wont change back up, I stop and turn the ignition off leave it a couple of minutes restart and normally the rev counter goes back to normal and the hold light goes out and we carry on our merry way very occasionally i need to stop and start it a couple of times before the rev counter goes back to normal.
So where do I start looking to solve the issue.
Thanks
Graham
Re: hold light/rev counter
Posted: Wed Jun 11, 2014 11:14 am
by Driver+Passengers
Hi and welcome!
You'll need to note the pattern of flashes next time it happens - here is a good place to start reading:
http://www.philmcfadden.co.uk/MazdaDiagnosticBox.htm
Re: hold light/rev counter
Posted: Wed Jun 11, 2014 12:17 pm
by Simon Jones
Petrol or diesel?
Re: hold light/rev counter
Posted: Wed Jun 11, 2014 8:48 pm
by larry787
its a diesel
Re: hold light/rev counter
Posted: Wed Jun 11, 2014 9:54 pm
by Ahead
Def Rev counter, not speedo playing up?
Re: hold light/rev counter
Posted: Wed Jun 11, 2014 10:18 pm
by Ian
Throttle position sensor?
Re: hold light/rev counter
Posted: Wed Jun 11, 2014 10:24 pm
by larry787
its defo the rev counter that's goes wobbly
Re: hold light/rev counter
Posted: Tue Jun 17, 2014 9:33 am
by southwestie
Jumping onboard here (hope you don't mind) as I have very similar transmission problems and need to read the flashing hold light sequence. Just looking at the link above, it seems a jump lead is necessary. Can anyone tell me where do I get one of these from?
Thanks.
Re: hold light/rev counter
Posted: Tue Jun 17, 2014 10:29 am
by g8dhe
Paper clip from the stationery store
Any bit of wire to jump between the two connections shown, short length of wire from a bit of mains flex, paper clip whatever you have to hand!
Re: hold light/rev counter
Posted: Wed Jun 18, 2014 6:35 pm
by southwestie
Wow
Just like being in the A Team
Re: hold light/rev counter
Posted: Thu Jun 26, 2014 9:59 pm
by southwestie
Thanks g8dhe for the tips.
Mines a diesel, automatic 4wd. Getting two codes from the hold light sequence:
12 - throttle position sensor
16 - not listed in the Automatic Transmission Malfunction Codes (from the philmcfadden link above), but in the Engine Malfunction Codes its described as EGR position sensor.
Can anyone advise, if it's possible to remedy these faults easily, or will the van need to be taken to a specialist?
Thanks
Re: hold light/rev counter
Posted: Fri Jun 27, 2014 10:16 am
by g8dhe
Given that the rev display fails I would check the RPM sensor first, mobile at present but a search will locate its position on the diesel.
Re: hold light/rev counter
Posted: Sat Jun 28, 2014 7:54 pm
by larry787
thanks for the advice Geoff any idea what the rpm sensor looks like and where it is liable to be
Re: hold light/rev counter
Posted: Sat Jun 28, 2014 7:54 pm
by larry787
thanks for the advice Geoff any idea what the rpm sensor looks like and where it is liable to be
Re: hold light/rev counter
Posted: Sat Jun 28, 2014 11:23 pm
by Simon Jones
Just in front of injector pump:
