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Old 12-16-2002, 22:23   #1 (permalink)
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I6 Backfire

when i accelerate fairly quickly in third(auto) from 80kph to about 115kph the engine seems to run fine except for short quick little periods of no power. then doing this uphill last night backfired at the same time as the no power bits. the engine was warmed up at the time.

any ideas why?

thanks in advance
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Old 12-16-2002, 23:46   #2 (permalink)
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have you done the usual, checking fuel system, sparks & leads ?
is if EFI ??
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Old 12-17-2002, 00:39   #3 (permalink)
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ignition too advanced, a plug not firing on each cycle, rich mixture - all the things already mentioned...

Need to know what type of engine to narrow down some options.
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Old 12-17-2002, 03:07   #4 (permalink)
Two SC 61's = trouble
 
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Too lean can do it too.. Leaking inlet etc.. Sparkplug leads ???Fuel filter, check fuel pressure ??? eec scan for fault codes ?? Loose or high resistance conection in your injection harness iff it is ??
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Old 12-18-2002, 01:55   #5 (permalink)
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Blocked catylitic converter?
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Old 12-18-2002, 21:28   #6 (permalink)
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sorry its from a 95 ef. i'll check the plugs and easy stuff before i get it looked at. it comes and goes now.
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Old 12-19-2002, 00:56   #7 (permalink)
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Ignition system breakdown.
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