nasty misfire - Page 7

andy · 16-09-09, 02:45 PM

i pulled some kind of sensor out of the top of the inlet manifold, a round one held in with 2 allen bolts. it's a green dash actulaay, is there any kind of fault codes on this or like old astras when you connect some rubbish with a paper clip then read the flashes on a light? seemed like it was only happening in 2nd when i last tried it, strange i thought!

andy · 20-09-09, 07:37 PM

sorted all thw wires behind the glove, thought it was fine, but today...its back :-(.
drove fine but stuttered a little at 4000 then climbed to around 5000 and stuttered again ...any ideas?
cheers,
Andy

darreno'd' · 20-09-09, 08:08 PM

This 4000 rpm bit still leans toward the air inlet temp sender, but i'd be interested to know what the boost level is when it happens. If the ecu see's too much it will cut the fuel pump, but, tbh when this happens you think the engine has fallen out, not just a misfire !

andy · 21-09-09, 10:37 AM

Quote:

Originally Posted by darreno'd'

This 4000 rpm bit still leans toward the air inlet temp sender, but i'd be interested to know what the boost level is when it happens. If the ecu see's too much it will cut the fuel pump, but, tbh when this happens you think the engine has fallen out, not just a misfire !

Ha ha! doesn't seem that bad!
was thinking that maybe the air temp sender could be buggered, or is this unlikely?
cheers,
Andy

pimpdriver · 21-09-09, 11:01 AM

have you changed your fuel filter? Read my thread on my antics over the weekend!!!

quattro-coupe · 21-09-09, 11:37 AM

what colour were the wires behind the glovebox? mine did a similar thing where the fuel pressure regulator on the block was fecked. this over fuelled the engine and made it misfire. try that.

andy · 21-09-09, 03:02 PM

Quote:

Originally Posted by quattro-coupe

what colour were the wires behind the glovebox? mine did a similar thing where the fuel pressure regulator on the block was fecked. this over fuelled the engine and made it misfire. try that.

I'll try that one, the wires were all kinds, think theres a pic further up.
cheers

andy · 21-09-09, 03:03 PM

Quote:

Originally Posted by pimpdriver

have you changed your fuel filter? Read my thread on my antics over the weekend!!!

niceone... I'll have to find it now and have a read

pimpdriver · 21-09-09, 03:05 PM

Quote:

Originally Posted by andy

niceone... I'll have to find it now and have a read

click here:

http://www.classic-audi.co.uk/forum/...ead.php?t=6650

andy · 26-09-09, 11:48 AM

think maybe i solved it but havent tested it yet as theres no wheels on her 2day but.... as ashamed as i am to say it.....i think it was just a buggered battery connection....oops. will update later on once its been for a run though

20-09-09, 08:08 PM	#63
darreno'd' Mr Sixty Thousand!! Classic Audi Club Member Join Date: Jul 2007 Location: berkshire Posts: 1,729	This 4000 rpm bit still leans toward the air inlet temp sender, but i'd be interested to know what the boost level is when it happens. If the ecu see's too much it will cut the fuel pump, but, tbh when this happens you think the engine has fallen out, not just a misfire ! __________________ http://www.oesems.co.uk/

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16-09-09, 02:45 PM	#61
andy Grown up member Join Date: Nov 2008 Location: between anglesey, N.Wales and Stavanger, Norway Posts: 301	i pulled some kind of sensor out of the top of the inlet manifold, a round one held in with 2 allen bolts. it's a green dash actulaay, is there any kind of fault codes on this or like old astras when you connect some rubbish with a paper clip then read the flashes on a light? seemed like it was only happening in 2nd when i last tried it, strange i thought!

20-09-09, 07:37 PM	#62
andy Grown up member Join Date: Nov 2008 Location: between anglesey, N.Wales and Stavanger, Norway Posts: 301	sorted all thw wires behind the glove, thought it was fine, but today...its back :-(. drove fine but stuttered a little at 4000 then climbed to around 5000 and stuttered again ...any ideas? cheers, Andy

21-09-09, 11:01 AM	#65
pimpdriver Devon Pastie Muncher Classic Audi Club Member Join Date: Jul 2007 Location: Calne Wiltshire Posts: 7,530	have you changed your fuel filter? Read my thread on my antics over the weekend!!!

21-09-09, 11:37 AM	#66
quattro-coupe Grown up member Join Date: Aug 2008 Posts: 29	what colour were the wires behind the glovebox? mine did a similar thing where the fuel pressure regulator on the block was fecked. this over fuelled the engine and made it misfire. try that.

26-09-09, 11:48 AM	#70
andy Grown up member Join Date: Nov 2008 Location: between anglesey, N.Wales and Stavanger, Norway Posts: 301	think maybe i solved it but havent tested it yet as theres no wheels on her 2day but.... as ashamed as i am to say it.....i think it was just a buggered battery connection....oops. will update later on once its been for a run though