Posted by Stephen Wright on October 25, 2013, 3:06 pm
Year of Manufacture *: 2007 Engine Size and Code *: 2400 ( Optional ) ECU Type: Denso ( Optional ) Scanner Used: Solus/KTS/Autodiagnose
Hi all not been on here for a while as have sorted most stuff lately but hey this one has stumped me. Got a Volvo C70 ENG code B5244s4 in at the moment with eml on,first job read codes, 130B mass air flow sensor break/make 6400 camshaft timing intake signal not in range 4000 EVAP signal not in range 1300Mass air flow break /make 6000 A?C compressor relay. Looked at code and thought what a variation checked fuses found F35 in engine bay gone 15amp, thought happy days this is going to be easy. But after driving out of workshop and 1/4 mile light back on. Same codes fuses gone tried turning off A/C still the same. Another new fuse and faults cleared stayed of for a 5 mile run but then bang light on but this time a 250A code mixture adaption fault, checked o2 sensor scoped and showed slow response so fitted new, faults cleared ok. then roadtest light on and the original faults back and now started to blow fuse again. Help would be greatfull please. Steve
Re: Volvo C70
Posted by Shane gray on October 25, 2013, 5:51 pm, in reply to "Volvo C70" Shane Gray
Hi, Sorry if stating the obvious ! Have a look at the wiring diagram is fuse 35 connected to maf / evap / cam sensor. If so it must be a short some where? Shane
Re: Volvo C70
Posted by Mark Carter on October 25, 2013, 10:34 pm, in reply to "Re: Volvo C70" Mark Carter
As Above plus the heater circuit of the O2 sensor ?
MarkModern cars, Its all wizardry and witchcraft
Re: Volvo C70
Posted by Stephen Wright on November 1, 2013, 8:58 am, in reply to "Re: Volvo C70"
Update on Volvo. I have looked at wiring etc, all looked good or so i thought, bonnet up and i went to the ignition to turn on and read some data, as i turned it on some white smoke started to appear from under the bonnet!!!! heart stops panic!!!! turned ignition off quickly ran to front and could see a red glow around oil filter/breather, pulled battery off smoke stopped,panic over, had a good look air filter assem out so could see better and on filter housing there is a heater for the breather could not belive it now waiting for £145+vat of parts then fit and see.
Fixed #
Posted by Stephen Wright on December 6, 2013, 12:30 pm, in reply to "Re: Volvo C70" Edited by board administrator December 6, 2013, 2:43 pm
Fitted new heater breather unit cleared faults and all ok. When speaking to Volvo abut this it seams that it may be a bit of a common thread withese and other Volvos of similar years
on October 25, 2013, 5:51 pm, in reply to "