C70. Just won't fire .......

[The Flying Banana]

Been using the C70 as a daily, been going great came home Thursday night and parked up. Came out this morning and it turning over but refuses to fire.. Changed the antenna ring, found a snapped earth cable on engine so fixed that but no joy, seems immobiliser related as not getting spark ( changed out coil etc ) ....any ideas ?

It's a 98 C70 T5 GT

Could the ECU fail in some way ?

[stribo]

Is it M4.4, or ME7, can you hear the fuel pump priming?

[claymore]

try the crank sensor

[merc85]

As above, or the cam sensor ;)

[p fandango]

Try reading the codes & see what it says

[The Flying Banana]

Ignorance here....where is crank or cam sensor ....can't get it running to get it to a garage for codes tho maybe just need to get it recovered to get it to a garage

Found the cam sensor..crank one to find now

[The Flying Banana]

Is it M4.4, or ME7, can you hear the fuel pump priming?

It's 4.4 and yes I here pump running

[p fandango]

Ignorance here....where is crank or cam sensor ....can't get it running to get it to a garage for codes tho maybe just need to get it recovered to get it to a garage
is there no one local who can read them for you, because you really are wasting your time (& money) just replacing random sensors when the whole idea of having diagnostics is too stop the guess work

[merc85]

The cam sensor is on the end of the Exhaust camshaft,

The Crank Sensor is directly in the Top of the Bell Housing where the Box meets the Engine held in with One 10mm

[The Flying Banana]

Cam sensor price...OMFG !

[merc85]

Cam sensor price...OMFG !


is yours 1998 me7? or has it got a throttle cable (pre me7)

if its looks like this i have a good used one you can try

24646

[The Flying Banana]

It has a throttle cable , will try get a code reader as Pedro is right....could be wasting money and time

[merc85]

You have pm

[The Flying Banana]

i took this off to have a look and get ready to put another in i cant believe that this small disc with what looks like some bits from Maplins can stop the car in its tracks lol

[mike 850]

put a volt meter across the cam sensor wires, if it oscillates between 0-5v while cranking it should be ok, can you feel the icv vibrating with ignition on?

[The Flying Banana]

Sorted...big thanks to Merc85... It was the cam sensor after all so all good now :)

[Yosser]

Sorry I missed this thread, glad you got sorted.

For future reference, I have code readers to cover most Volvos and I'm not too far away.

[The Flying Banana]

Thanks buddy I will keep that in mind :)