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Author Engine management light on??
Chadicles
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Registered: 8th Jun 09
Location: Westbury, Wiltshire
User status: Offline
11th May 10 at 20:01   View User's Profile U2U Member Reply With Quote

Hey was driving my xe corsa earlier when all of a sudden the engine management light came on, there was no difference in the engine still performed well and only seems to happen in high gears at high revs. any know wat this could be? also would like to hear of any problem, symptoms and fixes people have had via the engine management light???? cheers chad
Chadicles
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Registered: 8th Jun 09
Location: Westbury, Wiltshire
User status: Offline
11th May 10 at 21:39   View User's Profile U2U Member Reply With Quote

maybe not then =]
Ian
Site Administrator

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Registered: 28th Aug 99
Location: Liverpool
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11th May 10 at 21:44   View Garage View User's Profile U2U Member Reply With Quote

Could be loads of stuff, normally you would read out the fault code to find out.


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nathy_87
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Registered: 14th Aug 08
Location: West Mids. Drives: Škoda Fabia VRS 5J
User status: Offline
12th May 10 at 12:35   View User's Profile U2U Member Reply With Quote

As Ian said, Get it to a garge with a Diagnostics machine. Also leave it longer than 1hr 30mins for a reply.
Robo C20Let
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Registered: 22nd Feb 10
Location: Somewhere inside your mom !!!
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12th May 10 at 13:45   View User's Profile U2U Member Reply With Quote

do the paperclip test
Chadicles
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Registered: 8th Jun 09
Location: Westbury, Wiltshire
User status: Offline
12th May 10 at 14:22   View User's Profile U2U Member Reply With Quote

done the paper clip test got;
21- throttle posit5ion sensor (High voltage)

31- Engine RPM signal (crank shaft sensor) (no signal)

94 - Hall effect switch (HES) (High voltage)

Anyone want to shed some light on this now? i understand the tps is either breaking down or has a bad connection, and the other two are probally connected.. but from experience if theres no signal for the crank shaft sensor the car shouldn't run??
Robo C20Let
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Registered: 22nd Feb 10
Location: Somewhere inside your mom !!!
User status: Offline
12th May 10 at 16:52   View User's Profile U2U Member Reply With Quote

bad earths maybe, check the resistance on the engine
Robo C20Let
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Registered: 22nd Feb 10
Location: Somewhere inside your mom !!!
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12th May 10 at 16:52   View User's Profile U2U Member Reply With Quote

it will run without crank sensor but wont retard the ignition. it will run because the crank sensor is connected. it may differ but my engine started without it
Nic Barnes
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Registered: 5th Apr 04
Location: nowhere near ginger people
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12th May 10 at 16:58   View User's Profile U2U Member Reply With Quote

it wont run without a crank sensor
Chadicles
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Registered: 8th Jun 09
Location: Westbury, Wiltshire
User status: Offline
12th May 10 at 17:22   View User's Profile U2U Member Reply With Quote

oh right well cheers for the help and info!! i've got some spare sensors and parts up my mates yard so i'll have a little play when i can get up there... wont be till next week tho as i'm busy and am going to jap fest at castle combe race circuit on sat! but im sure it will be fine! probally have ago with abit of wd40 on the connectors and clean up some earths untill then tho!

 
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