mikey4410 Posted May 25, 2014 Share Posted May 25, 2014 Heya guys.seriously considering jacking this starlet shit in now.having problem after proplem at the moment. I am having an issue with my starlet:1. When started from cold the afr goes down to 7.3 instead of the old 11-12 afr.2.whilst at half throttle under load or wide open throttle it also hits 7.4 instead of the old 10.5-11.0 afrI have had this fueling issue I believe since I replaced the turbo the other day.i caught the lambda wire and thought I damaged it but I am not so sure now.changed the lambda and its still not right with fueling now.it reads around 14.8 when idle and other than that somethings not right. Other than the turbo being changed and lambda I havent altered anything else.I just havent got a clue whats doing this. Quote Link to post Share on other sites
1990timeismoney Posted May 25, 2014 Share Posted May 25, 2014 Has it got a fcd fitted.Or has it got a rrfpr Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 It has a srad rrfpr that hasnt been touched for months.I do not and will not run a fcd.the things are shite.lol Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 The thing I gather from reading up and comments is that the lambda controls idle/ cruise afrsbut hasnt anything to do with wide open throttle which is what stumps mesurely that means it has to be fueling as in fpr or injectors failing and pissing lots of fuel out and giving dud reading? Quote Link to post Share on other sites
1990timeismoney Posted May 25, 2014 Share Posted May 25, 2014 Sounds strange what fuel pressure is it set to.i had a similar problem with myn Quote Link to post Share on other sites
mech5107 Posted May 25, 2014 Share Posted May 25, 2014 So now it stays at 14.8 now? Then it's fine...What wideband do you have? It's strange that can read down to 7.3...Stock lambda is not heated so sometime can give false reading, especially if restarted when coolant is hot. Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 Running a td04 @ 0.80 bar and fuel pressure is at just over 2.1 bar and used to give me afrs of 10.5-11.0 Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 It occasionally goes a bit awol at idle but as soon as ure on the gas half throttle or more it really goes down rapid to 7 afr. Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 Innovate LC1 afr guage, yeah they do read a broad spectrum. Quote Link to post Share on other sites
1990timeismoney Posted May 25, 2014 Share Posted May 25, 2014 I'm running a aem wideband 2.1 bar Is below stock pressure I think stock is 2.4 im running same setup at 1bar with fuel pressure at 2.5 to 2.6 and getting 14.7 idle and 10.9 to 11.1 wot Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 Like I say mines been fine for months and months and afrs have always been bang on all the way through revs and idle.I cant be arsed with it anymore I dont think.just spending money after money on it qnd getting problems every week it seems.so hacked off Quote Link to post Share on other sites
1990timeismoney Posted May 25, 2014 Share Posted May 25, 2014 Do you no anyone with a spare gauge you can wire up Quote Link to post Share on other sites
morgey Posted May 25, 2014 Share Posted May 25, 2014 Have you tried re-calibrating the innovate? I'm 99% sure my mate had to do it on his car running one of them Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 Surely also this thread I did the other day cant be a coincidence. ?....http://www.ukstarletowners.com/topic/81322-should-afrs-be-getting-richer-with-hot-weather/ Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 A problem thats been getting progressively worse ?? Quote Link to post Share on other sites
morgey Posted May 25, 2014 Share Posted May 25, 2014 I know it's been hot but 45 degrees? It's topped 22 23deg surely with air passing through that shouldn't be that hot? Thought about checking or changing temp sensors? Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 The engines had new sensors recentlythe afr I will recalibrate tonight or tommorow but I am pretty sure its fine.the inlet temps sensor I have is seperate to the car.its aftermarket Quote Link to post Share on other sites
mikey4410 Posted May 25, 2014 Author Share Posted May 25, 2014 My mates pretty sure its an injector.its when required to up fueling ( foot on throttle, or choke) its putting in alot more fuel than it should.have already sourced some stock injectors and will go from there. Will also check plugs for richness in said cylinder the possible injectors failing on. Quote Link to post Share on other sites
mikey4410 Posted May 26, 2014 Author Share Posted May 26, 2014 Checked all plugs and they are ok and tan.next I tryed fitting some different injectors, this made no difference at all.now even when the cars pretty much warm its running at 10.8 afr which is still way to rich as it should be 14.8 afrI am still sure its electronic and my next thing I will change is new coolant temp sensor.if its not that I am gonna be stuck bad. Quote Link to post Share on other sites
mikey4410 Posted May 28, 2014 Author Share Posted May 28, 2014 Ok so now I have tryed 2 brand new engine coolant temp senders and the afrs change so ecu is definatelty getting a good temp signal.then I noticed the afr gauge showed 22.4 whilst the car was running which is impossible so I am pretty sure the afr sensors had it.also as I said above when I pulled plugs and checked them the other day they were tan which surely wouldnt happen if the car was running afes as low as 7.4.I am quite sure bosch sensors gone, will try and calibrate and see what happens but my "issue" is solely based on the afr gauge so I might have had a wild goose chaseanybody had an afr gauge give dud readings before ???? Quote Link to post Share on other sites
richardc9052 Posted May 28, 2014 Share Posted May 28, 2014 Yeah sounds like your sensors gone. You should try the AEM wideband, It apparently doesnt need calibrating.. but theat means more money over the 50 to replace the sensor..Only other thing is when you changed the turbo did you change the gaskets? if there is a leak before the wideband it will go mental and its controlling the lambda input.. This, and the unit needing replacement are both reasons for it reading erratically Quote Link to post Share on other sites
mikey4410 Posted May 28, 2014 Author Share Posted May 28, 2014 I can't afford to replace the sensor anytime soon. Car runs really well and I am sure its sensor fooked.will try recalibration tommorow eve but other than that I know me afrs are good at 10.5 at wot Quote Link to post Share on other sites
bajansuperman Posted May 28, 2014 Share Posted May 28, 2014 i'm getting this same problem but its running lean and works on 3 cylinders at times on and off gas coming out cylinder number 4 is this the temp sensor? Quote Link to post Share on other sites
mikey4410 Posted May 28, 2014 Author Share Posted May 28, 2014 Mine hasnt had running issues, just "looked" like there was based on the afr gauge. Quote Link to post Share on other sites
richardc9052 Posted May 28, 2014 Share Posted May 28, 2014 remove the wire from wideband to lambda input and plug your lambda back in.. just disregard the wideband readings for now. If your really worried about you afr, Get them checked at rr after..How old is the wideband? Quote Link to post Share on other sites
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