wayne_rob1
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Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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Alrite guys just a few q's to ask ive recently fitted a new head to my friends c20xe after shredding his 5th engine, basically where up and running but we have a large mis fire mainly on cylinder 3, we seem to be getting enough fuel and spark, we have installed a new crank sensor leads dizzy and plugs and rotor arm, cambelt headgasket rollers etc etc basically a top end rebuild BUT we used a recon c20let head will this cause a problem with it, i did a compression test and checked the timing which is spot on. we also changed the throttle body is there any difference in the manfolds or throttle bodies? we have an early type engine and loom, also when i go to start to the car im gettin 6 blinks off the clifford alarm, anyone any good with them ? cheers wayne
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luke85
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Registered: 26th Nov 07
Location: Chesterfield
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The heads are the same but the cams are different, did you use the C20XE cams? Should really have used the complete inlet setup from the C20XXE but Ive never had an XE so Im not sure if the inlet manifolds and throttle is the same
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chris_gilly
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Registered: 13th Nov 08
Location: Birkenhead, Merseyside
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i see your near me LOL! i think you know my mate! maybe its worth checking the cam lobes on that cylinder for damage or see if there working like they should?! also check the spark plug gap is correct and maybe its worth swaping plugs to check also do the same with the HT lead!
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wayne_rob1
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Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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Yes ive changed the cams and lifters from the previous head the lobes where all fine as the engine ran mint before it chucked its belt of it! that what im concerned about if the manifolds are the same :s im not sure either im gonna put the old throttle body on and see how things are from there, tbh it sounds like fuel starvation as it hunts all the time but its not drawing in air, "chris_gilly" whos your mate? cheers guys
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chris_gilly
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Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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ben people know him as finchy?? sorry to go off topic!! erm maybe worth defo checking the plugs and HT's thou as usually it isnt firing when it should be making it mis fire?!
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wayne_rob1
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Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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oh yer i know, no its got brand new leads and plugs and ive even used my old lead tester haha works a charm  but still no joy , the funny thing is when the car was running the engine light would never ilumitate but now it is contantly on but i dont have a tech 1 to check whats wrong
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chris_gilly
Member
Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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do the paper clip test! give me a sec ill post you how to do it!
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chris_gilly
Member
Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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remove the fuse box cover on drivers side, and you will see a grey block on the left hand side, get a paper clip and as you look at the block put one end of the paper clip in the top left and the other end 2nd from top on the left. and video recored the eml light flashing it will flash one then stop then twice this just means start of the test it will do that three times then will give you the code by flashes.
http://www.topbuzz.co.uk/info/fault_codes/fault_codes.htm
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wayne_rob1
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Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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i will try it 2moro but any other dieas lads then let us know , cheers
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chris_gilly
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Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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thats prob your best bet but the eml must be on for 30 secs to record the fault. you will know exactly were to look if you do this!
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wayne_rob1
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Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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the thing is tho its in a corsa the c20xe will this stil work ? i dont know where the diagnostic plug is on the cavalier loom?
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wayne_rob1
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Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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and which pins do i bridge ??:S:S:S
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chris_gilly
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Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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look on the website link mate it will tell you everything!
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wayne_rob1
Member
Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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right well i did tht and it came back code 16 knock sensor circuit which would proberly just be showing up due to the engine mis-firing
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chris_gilly
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Registered: 13th Nov 08
Location: Birkenhead, Merseyside
User status: Offline
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if im right the knock sensor detects damage to the block eg worn big ends etc.. i thought piston 3 could be damaged. the only thing i can say is strip it down check everything.. take the sump of and check for damage up the bores etc
or if you like change the knock sensor to start with
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wayne_rob1
Member
Registered: 15th Aug 08
Location: Port Sunlight, Cheshire
User status: Offline
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problem was injectors, all sorted now
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