Changing P.C.V

RXS · Feb 22nd, 2010, 19:09

Hi all just a quick question im changing pcv system pipes oil box ect, have got it all striped down ready for the new parts tomorrow and wanted to know if i could put the battery back on to check my oil pressure switch and wireing to it as the light on dash has never worked, i have changed the bulb, so must be wireing or switch and thought it would be easier to get to with the manifold off, just not sure if i put the battery on with every thing disconected and turn on ignition it will blow something.

Thanks in advance
Rob

bambam27 · Feb 22nd, 2010, 19:21

Quote:

Originally Posted by RXS

Hi all just a quick question im changing pcv system pipes oil box ect, have got it all striped down ready for the new parts tomorrow and wanted to know if i could put the battery back on to check my oil pressure switch and wireing to it as the light on dash has never worked, i have changed the bulb, so must be wireing or switch and thought it would be easier to get to with the manifold off, just not sure if i put the battery on with every thing disconected and turn on ignition it will blow something.

Thanks in advance
Rob

the only problem you will have is not to put the ignition on if the inlet manifold and injectors are off as it will just shoot the petrol out all over the place but should be ok if the injectors and fuel lines are still together i hope this helps

charlotte001 · Feb 22nd, 2010, 19:27

Locate the fuse to the fuel pump then you can check your oil pressure otherwise as the previous poster said you will have a sudden spray of fuel

RXS · Feb 22nd, 2010, 21:06

thanks for the quick reply

so you dont think it will mess up the ecu ?

charlotte001 · Feb 22nd, 2010, 21:19

Removing the fuel pump fuse wont harm anything.

bambam27 · Feb 22nd, 2010, 21:41

Quote:

Originally Posted by charlotte001

Locate the fuse to the fuel pump then you can check your oil pressure otherwise as the previous poster said you will have a sudden spray of fuel

or yes to this post aswell i didnt think of that lol

JimDay · Feb 22nd, 2010, 22:44

Why not disconnect the battery positive & reconnect the negative terminal then run a test bulb from the positive battery terminal to the oil switch it should light up if not the switch is duff.
Or wait till it's all back together & work from undermeath the car & run a test light from the oil switch wire to earth with the ignition on it should light up if not the wiring is suspect.

RXS · Feb 23rd, 2010, 16:44

Thanks jim day the negative and bulb worked a treat it was the wire

Feb 22nd, 2010, 19:09	#1
RXS manic monkey Last Online: Mar 9th, 2019 13:08 Join Date: Jan 2010 Location: Kent	Changing P.C.V Hi all just a quick question im changing pcv system pipes oil box ect, have got it all striped down ready for the new parts tomorrow and wanted to know if i could put the battery back on to check my oil pressure switch and wireing to it as the light on dash has never worked, i have changed the bulb, so must be wireing or switch and thought it would be easier to get to with the manifold off, just not sure if i put the battery on with every thing disconected and turn on ignition it will blow something. Thanks in advance Rob

Feb 22nd, 2010, 19:27	#3
charlotte001 Premier Member Last Online: Jul 26th, 2012 11:13 Join Date: Jul 2009 Location: norwich	Pcv Locate the fuse to the fuel pump then you can check your oil pressure otherwise as the previous poster said you will have a sudden spray of fuel __________________ Previous Volvos:850 GLT 2.5 20V Auto Saloon Silver. 1997 850 T-5 Auto Estate Nautic Blue Chipped ECU, V70 TCV, Carbon Cased Filter, 17inch alloys, Rattling Engine masking the suspension rattles. Engine doesn't rattle anymore

Feb 22nd, 2010, 21:19	#5
charlotte001 Premier Member Last Online: Jul 26th, 2012 11:13 Join Date: Jul 2009 Location: norwich	Pcv Removing the fuel pump fuse wont harm anything. __________________ Previous Volvos:850 GLT 2.5 20V Auto Saloon Silver. 1997 850 T-5 Auto Estate Nautic Blue Chipped ECU, V70 TCV, Carbon Cased Filter, 17inch alloys, Rattling Engine masking the suspension rattles. Engine doesn't rattle anymore

Feb 22nd, 2010, 22:44	#7
JimDay Mad Murdoch Last Online: Feb 3rd, 2021 12:15 Join Date: Nov 2008 Location: Hampshire View Photos By: JimDay	Why not disconnect the battery positive & reconnect the negative terminal then run a test bulb from the positive battery terminal to the oil switch it should light up if not the switch is duff. Or wait till it's all back together & work from undermeath the car & run a test light from the oil switch wire to earth with the ignition on it should light up if not the wiring is suspect. __________________ "If It Ain't Broke Don't Try To Fix It" Jim Day 1999 V70 2.5 T SE Auto "ME7" Caravan = 2003 Swift Charisma 550 4 Berth

Feb 22nd, 2010, 21:06	#4
RXS manic monkey Last Online: Mar 9th, 2019 13:08 Join Date: Jan 2010 Location: Kent	thanks for the quick reply so you dont think it will mess up the ecu ?

Feb 23rd, 2010, 16:44	#8
RXS manic monkey Last Online: Mar 9th, 2019 13:08 Join Date: Jan 2010 Location: Kent	Thanks jim day the negative and bulb worked a treat it was the wire

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