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Author Anyone know what map sensors are???
Melville
Member
Registered: 4th Jun 03
Location: Newcastle upon Tyne
User status: Offline
   23rd Feb 04 at 16:11   View User's Profile U2U Member Reply With Quote
Just had my car looked at as it wouldnt start. Just had the garage on the phone and they said it was the map sensors??

Any ideas what they are or what they do?? I dont have a clue

Thanks Mark
Miner
Member
Registered: 28th Aug 02
Location: Ayrshire,Drives: Corsa 12v & CBR600Sport
User status: Offline
23rd Feb 04 at 16:16   View User's Profile U2U Member Reply With Quote
Manifold Absolute Pressure sensor, It's one of the sensors on the intake.
Melville
Member
Registered: 4th Jun 03
Location: Newcastle upon Tyne
User status: Offline
23rd Feb 04 at 16:17   View User's Profile U2U Member Reply With Quote
any ideas why that would prevent my car from starting properly?? Im hopless with engines and stuff like that incase you hadnt already worked it out
Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
23rd Feb 04 at 16:24   View User's Profile U2U Member Reply With Quote
have you a 1.4 / 1.2 8v by any chance?
Melville
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Registered: 4th Jun 03
Location: Newcastle upon Tyne
User status: Offline
23rd Feb 04 at 16:28   View User's Profile U2U Member Reply With Quote
1.2 16v corsa c
Adam-D
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Registered: 11th May 02
Location: Cheshire
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23rd Feb 04 at 16:32   View User's Profile U2U Member Reply With Quote
dunno then
Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
23rd Feb 04 at 16:34   View User's Profile U2U Member Reply With Quote
id have one on my engine but on the c i dont know where it is
miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
23rd Feb 04 at 16:51   View User's Profile U2U Member Reply With Quote
Its a small black box with a vacuum connection on it, it has a vacuum pipe going to from the inlet manifold, it measures the vacuum in the inlet manifold and adjusts the fueling accordingly.

Its its duff then the engine will run really badly, backfire etc.

I think the sensor is clipped to the bulkhead.

If you find it, disconnect it and try and start it, you'll soon notice

I believe most map sensors across the vauxhall range are the same.
Stingray
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Registered: 16th Nov 01
Location: Cleethorpes, Lincs
User status: Offline
23rd Feb 04 at 17:26   View User's Profile U2U Member Reply With Quote
u sure he sed MAP sensor and not MAF sensor?
Melville
Member
Registered: 4th Jun 03
Location: Newcastle upon Tyne
User status: Offline
23rd Feb 04 at 19:03   View User's Profile U2U Member Reply With Quote
yup definately map sensors unless he ment maf sensors
Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
23rd Feb 04 at 19:07   View User's Profile U2U Member Reply With Quote
well it manifold absaloute pressure
has a vacumm pipe on it
not hard to fix

 
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