Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: westy on 09 March 2008, 23:10:01

Title: wont rev past 4500 rpm
Post by: westy on 09 March 2008, 23:10:01

hi every one my engine wont rev past 4500 rpm and sometimes if you keep pushing, it cuts out completely and wont restart until car is stationary; light is on, diagnostics said cam sensor changed that today but symptoms remain the same also starter is very sluggish and worst when hot! any ideas ? ps great web site and thanks

Title: Re: wont rev past 4500 rpm
Post by: VXL V6 on 09 March 2008, 23:14:56

Usually cam sensor for 4.5K limit, is the eml still on?

Can be Crank sensor but need to check codes first as crank sensor isn't as easy to replace as cam sensor, especially if you have aircon.

Title: Re: wont rev past 4500 rpm
Post by: westy on 09 March 2008, 23:18:50

yes eml is still on

Title: Re: wont rev past 4500 rpm
Post by: MutantCav on 09 March 2008, 23:21:09

DO paper clip test...camshaft sensor is 19 or 31...most likely to be at fault on a v6...

Title: Re: wont rev past 4500 rpm
Post by: VXL V6 on 09 March 2008, 23:22:17

Quote

DO paper clip test...camshaft sensor is 19 or 31...most likely to be at fault on a v6...

Not a V6!

Title: Re: wont rev past 4500 rpm
Post by: VXL V6 on 09 March 2008, 23:26:37

Quote

yes eml is still on

If eml is still on then either you have another fault or the original fault still exists. Need to read codes to find out which.

Title: Re: wont rev past 4500 rpm
Post by: westy on 09 March 2008, 23:36:24

thanks will get codes read again   ::)

Title: Re: wont rev past 4500 rpm
Post by: TheBoy on 10 March 2008, 10:53:08

Quote

DO paper clip test...camshaft sensor is 19 or 31...most likely to be at fault on a v6...

Just to clarify - 19 or 31 is CRANKshaft sensor.  Also 31 is not necessarily a fault, whereas 19 is.

Title: Re: wont rev past 4500 rpm
Post by: TheBoy on 10 March 2008, 10:54:43

Quote

thanks will get codes read again   ::)

Do paperclip test as described in Maintenence Guides section of this site - and post up.

As others said, sounds like CAM sensor, so I'm expecting you to get a 0340 or 94 depending on age of car :)

Title: Re: wont rev past 4500 rpm
Post by: westy on 16 March 2008, 12:44:04

ok im back again got codes read on saturday still says cam sensor and now also says oxygen sensor and ignition cylinders 1and4 also power seems further up the rev band i think they may have given me the wrong sensor as it looks the same but has no part no i dont think this was a genuine part cost £25plus vat from vaux specialist in the north if i have missed something please let me know thanks westy ::)