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displaying posts 26 to 31 of 31
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| Author | Subject: lacking power - help |
 cjm_harris
Seasoned Pro  Location: Parts for Sale section Registered: 04 Dec 2007 Posts: 7,442 Status: Offline |
Post #26
I cleaned all the throttle body out on mine at the weekend.Was gunked up with oil and crap and now moves much more smootly than before. Still have the same problems though. I know some are different and down on power etc, but mine was better than this. Will try the MAP sensor and o2 sensor next. Isn't o2 the lambda?  ________________________________________ Chris1999 China Gti6 Supercharged  [Fun car] >>Project Thread<<2000 Bianca 306 Diesel [Work runabout] |
 Posted 25th Nov 2009 at 04:34
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cress87
Seasoned Pro  Location: Norwich Registered: 30 Mar 2007 Posts: 11,360 Status: Offline |
Post #27
cjm_harris wrote: Isn't o2 the lambda?  ________________________________________  You feed beefburgers to swans. I may have been speeding Mr Policeman but [a] I live for the 306 and [b] did you see that dog? omfg |
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Posted 25th Nov 2009 at 04:35
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monty-69
Senior User  Location: Colne Registered: 02 Jul 2006 Posts: 792 Status: Offline |
Post #28
Unless the o2 senser is way out causing the plugs to foul it shouldnt affect full throttle power. I can't see how cleaning the throttle body could improve power noticeably as they only get a very slight oil/carbon film. Its amazing how may people say there car pulls better when you just change the oil and whipe its arse, its all in their heads. |
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Posted 25th Nov 2009 at 18:49
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spitfire
Regular  Location: Leighton Buzzard Registered: 30 Apr 2009 Posts: 365 Status: Offline |
Post #29
Matt, I didn't do the work on my car so I'm not sure how the throttle body was cleaned.My car was hunting all over the place before I took it to my mate who sorted it out. He spent a whole day playing with the car, he ran several diagnostics on it and tweaking bits and pieces replaced the MAP sensor, O2 sensor (lamba)and from the work he did it has got noticably more oomph and I'm not imagining it! The hunting issue was just the ICV sticking and was sorted by just cleaning it. He only found the other issue by running the diagnostics test! ________________________________________ If you aint first, your last! |
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Posted 25th Nov 2009 at 22:37
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cjm_harris
Seasoned Pro Location: Parts for Sale section Registered: 04 Dec 2007 Posts: 7,442 Status: Offline |
Post #30
Mine seems opposite to lamda failure though. It's quite backwards (probably because it's French)Mine is down on power and doesn't seem to rev as easily. The exhaust is quiter, I get more mpg and the biggest one is it passed its MOT on emissions last month going through with no cat ________________________________________ Chris1999 China Gti6 Supercharged [Fun car] >>Project Thread<<2000 Bianca 306 Diesel [Work runabout] |
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Posted 26th Nov 2009 at 00:49
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cress87
Seasoned Pro Location: Norwich Registered: 30 Mar 2007 Posts: 11,360 Status: Offline |
Post #31
Is the throttle definitely opening fully Chris?Mine bogs down a bit when you open the throttle below about 2200rpm. It's probably the lambda or something but It passed it's MOT less than a month ago.  I noticed an improvement when I had my pattern cat removed and replaced with a genuine one. Definitely seems to rev harder at the top end. The pipe diameter of the old cat was a bit smaller. ________________________________________ You feed beefburgers to swans. I may have been speeding Mr Policeman but [a] I live for the 306 and [b] did you see that dog? omfg |
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Posted 26th Nov 2009 at 00:55
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