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Topic: 2.3 high tickover (Read 1899 times) |
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5stud
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2.3 high tickover
« on: Aug 8th, 2010, 12:47am » |
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just picked up a 2.3 man est the tickover is obout 2.25k. code reader turns up no stored codes.so try taking off and blocking all pipes still no joy.then cha nged inlet manifold right back to air box useing new gaskets-seals.from a good runnerl but still no joy.
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Jonnycab
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Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: 2.3 high tickover
« Reply #1 on: Aug 8th, 2010, 12:54am » |
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Idle control valve ? 
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tonyboy
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black2.924Vcoss ( No More )
  
 
Posts: 998
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Re: 2.3 high tickover
« Reply #2 on: Aug 8th, 2010, 1:11am » |
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maybe a service,
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I think i'm going, erm what do you call it..... Senial.... 
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Simmo
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Re: 2.3 high tickover
« Reply #3 on: Aug 8th, 2010, 7:32am » |
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Clean the MAF ?.
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Stixy
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Re: 2.3 high tickover
« Reply #4 on: Aug 8th, 2010, 8:47am » |
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I would look at the idle speed control valve too it sounds like its stuck fully open unplug it when the engine is running see what happens if the revs drop its the valve or wiring if they dont drop the fault is elseware . have you tried blocking the egr pipe at the manifold end ?
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5stud
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Re: 2.3 high tickover
« Reply #5 on: Aug 8th, 2010, 9:58am » |
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we have tryed this parts from a good runer.inlet manifold with new seals.maf.idle controle vavle.top loom.sealed the egr at manifold.but it still revs its bxxxx of at tickover.at first we tryed blocking all the holes into the inlet manifold.sirvo.trotel bypas vavle.egr .ect on at a time
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Mike H
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Renault Clio
Posts: 2594
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Re: 2.3 high tickover
« Reply #6 on: Aug 8th, 2010, 1:03pm » |
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Throttle stuck open slightly? Cable tight? Or too loose?
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Mike H
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Mike H
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Renault Clio
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Re: 2.3 high tickover
« Reply #7 on: Aug 8th, 2010, 1:05pm » |
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Appendix ~ if it's got cruise control maybe that is messing something up so the throttle won't close properly (?)
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Mike H
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5stud
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Re: 2.3 high tickover
« Reply #8 on: Aug 11th, 2010, 9:15am » |
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removed manifold fore the forth time and sealed it with mastick this time and fingers crosed its ticking over normal must have been air geting past a seal sumewhear.its the big one to day MOT 2 oclock fingers crosed agane.
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: 2.3 high tickover
« Reply #9 on: Aug 11th, 2010, 11:58am » |
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The manifolds are a bit strange in that they tighten to the steel inserts – the plastic part doesn’t necessarily pull tight to the face on the head like a normal metal manifold. The rubber gaskets squeeze up to make the seal or not as in your case.
Good luck.
Dave
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ABS multiplug wheel sensor pins MK IV or MK 20
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: 2.3 high tickover
« Reply #10 on: Aug 11th, 2010, 1:46pm » |
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A-ha! So was a leak.
Yes again plastic is a bizarre choice of material isn't it?
@ 5stud there are several mentions on here about converting to the 2 litre alloy manifold, probably a more reliable option for the future (?)
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Mike H
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5stud
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Posts: 436
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Re: 2.3 high tickover
« Reply #11 on: Aug 12th, 2010, 8:45am » |
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the highs and LOWS of scorpio ownership it failed.
near side hand brake
co level at fast idle=5.56 =max0.30
co level at natural idle 3.19 =max 0.50
lamba 0.85 =min =0.95 max =1.09 the lamba came off a scorpio that pased mot in may but the head gascet failed so that may have killed the lamba .all the rest is ok.can you test lambas.
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Simmo
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Re: 2.3 high tickover
« Reply #12 on: Aug 12th, 2010, 9:49am » |
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Have a look at This page and see if that helps re the Lambda sensor. Check out the 'links' at the side of the page too. The handbrake will almost certainly be a problem with the caliper. Go to the 'How to do things'page and check out BOTH the entries about brake calipers as the photos will help you understand the mechanism. The first thing to try is a good dose of WD40 to the lever on the caliper where the cable attaches. You will see that it is held in place by a bolt. Undo the bolt a couple of turns so that you can slightly raise the lever as well as moving it back and forth. DONT fully release the bolt or you'll have a right job getting it all back together. The shaft going in to the caliper WILL NOT pull right out as it is held by a peg at its base.
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Mike H
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Renault Clio
Posts: 2594
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Re: 2.3 high tickover
« Reply #13 on: Aug 12th, 2010, 2:05pm » |
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Bum.
Cat, exhaust system, MAF, EGR valve ...... (?)
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Mike H
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5stud
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Posts: 436
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Re: 2.3 high tickover
« Reply #14 on: Aug 25th, 2010, 10:01am » |
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still cant get it to pass the nutural idle test .jim the nice mot man is baffled put it on test it will be reading betwen 0.09 and 0.08 pass then it jumps up to 2.12-2.30 fail then back down to lower level.it seams to go low-high-low-high.just put on new lambda and tbv .o fore the carb days you screwed them down at the mot station then went home and screwed them back .
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: 2.3 high tickover
« Reply #15 on: Aug 25th, 2010, 2:01pm » |
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Has you looked at error codes since the first time?
Could be a wiring problem? PCM not getting the correct signals (wiring 'breaks'), getting wrong signals (wiring shorts), can't output properly to something (both)
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Mike H
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Mike H
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Renault Clio
Posts: 2594
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Re: 2.3 high tickover
« Reply #16 on: Aug 25th, 2010, 2:04pm » |
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Appendix ~ this 'low-high' business sounds like it's 'hunting' for the correct mixture and can't work it out, so keeps trying opposite extremes (?)
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Mike H
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5stud
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Re: 2.3 high tickover
« Reply #17 on: Aug 25th, 2010, 9:58pm » |
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a mate came round last weekend with his 2.5 grand snapon code reader but couldint find a thing wrong.if you disconect the afm will it run on open loop and maybe give a more stable reading
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Tompion
Administrator
1997 2.3 Ultima estate.
Posts: 2918
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Re: 2.3 high tickover
« Reply #18 on: Aug 25th, 2010, 10:24pm » |
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A poor connection won’t necessarily give a fault code. If the connection causes a fluctuating reading but remains within the acceptable range then a reader won’t show a fault. You could look for sensors giving fluctuating outputs such as ECT MAF etc.
Are there any changes in engine note/rpm when the emission changes occur?
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ABS multiplug wheel sensor pins MK IV or MK 20
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5stud
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I'm a YaBB newbie!
Posts: 436
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Re: 2.3 high tickover
« Reply #19 on: Sep 9th, 2010, 9:53am » |
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just found a new way to kill a 2.3 inlet manifold.witch hapend first dont no .the cat brick disitagrated blocking the expipe .then the exgases go round the egr sistem all the time melting the inlet manifold internals just by the tbv so you have high tickover.this may have damaged sumthing and the reason i am havig problems with geting trough mot .the manifold looks ok externaley
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