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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » pinking, hesitating and exhaust popping


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Author pinking, hesitating and exhaust popping
shane2corsa
Member
Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline
   18th Jul 06 at 21:35   View User's Profile U2U Member Reply With Quote
my car seems to pink/detonate at about 1/4 throttle when just cruising along, it hesitates quite badly and backfires like something mad! its a 1.4 8v hi torq one by the way..
any suggestions? the engine is standard i will also add
shane2corsa
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Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline
18th Jul 06 at 21:58   View User's Profile U2U Member Reply With Quote
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DarkBahamut
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Registered: 4th Jun 06
Location: Cambridge, Cambridgeshire
User status: Offline
18th Jul 06 at 22:17   View User's Profile U2U Member Reply With Quote
EM light on at all?
Ry_B
Banned
Registered: 1st Dec 05
Location: Solihull, W Mids Drives: 45BHP beast!
User status: Offline
18th Jul 06 at 22:28   View User's Profile U2U Member Reply With Quote
When was it last serviced?
shane2corsa
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Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline
19th Jul 06 at 16:28   View User's Profile U2U Member Reply With Quote
no EM light no, was serviced about a month ago, although the HT leads look like originals from factory, could they be the problem?
shane2corsa
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Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
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19th Jul 06 at 16:37   View User's Profile U2U Member Reply With Quote
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DarkBahamut
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Registered: 4th Jun 06
Location: Cambridge, Cambridgeshire
User status: Offline
19th Jul 06 at 20:44   View User's Profile U2U Member Reply With Quote
Dunno, looking in my haynes manual at what it says.

The problems thats comes under 'Engine hesitates on acceleration' 'pre-ignition (pinking) or knocking during acceleration or under load' and 'Engine backfires' is a vacuum leak at the fuel injection unit/throttle body, inlet manifold or assoctated hoses or a fuel injection system fault.

There are other ones listed, but those are the two that come under all 3.
shane2corsa
Member
Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline
19th Jul 06 at 21:35   View User's Profile U2U Member Reply With Quote
humm, ill have a tweak at the inlet manifold tomorow, see if that works. thanks all

 
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