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Discussion Starter · #1 ·
alright boys, got a problem wid me beast she starts up an idles perfect but under acceleration it sounds like its runnin on 3 cylinders or being starved of fuel, obvious things i have done,, changed leads, new dizzy an rotor arm, new plugs. Its still on standard injection and has a m-tech powercap. Any ideas??
 

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When my knock sensor was playing up it sounded like it was running on 3 cylinders. It retards the ignition so much it sounds like a really loud flat 4 without an exhaust on.
 

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Discussion Starter · #5 ·
cheers guys. i will try all of this now an i`ll let you know, another thing i noticed was it runs as normal for the first minute or so wen started from cold then starts playin up, i`ll be back shortly
 

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Discussion Starter · #6 ·
nar no good, gave me injectors a good dose in wd40, comp is good in all cylinders,, its soundin even more like a scooby now, were is the knock sensor located?? how difficult is it to change??
 

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u sure u got spark in every cylinder, ignition problem. usually is when one of the pistons not fireing is usually the problem, has a it got a disi cap or a coil pack?
 

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Discussion Starter · #8 ·
yer mate pretty sure its not a spark prob, me dizzy packed up bout a month back so i got me a branny bosh £170, robbin *******s. So fitted that wid split fire leads new plugs, dizzy capp, rotor arm,, thing is it runs fine from cold for about a mile then starts goin all scooby
 

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Discussion Starter · #10 ·
not 192 now, it was runnin 20 bhp shot nos then, now shes back to 172 work its had done, early calibra engine wid stage 1 blydenstien head, courenay fast road cams, cossie bottom end bolts, wasp chip, m-tech power cap, pulsar gtir induction, ss powerflow exhaust, f 20 box wid quaife lsd an uprated clutch,, i was actuately lookin for a met black astra gsi wen i bought it but i see it for sale an thought fook it
 
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