peter richards Posted November 14, 2011 Author Share Posted November 14, 2011 intresting you didnt say that before?i tried it earlier today and didnt pick it up , but my mate came over later and did . yes chris ill swap the coil pack around in the morning see if it is no5 , he did say it could be an injector, sort of getting close now . still appreciate all the replies Quote Link to comment Share on other sites More sharing options...
mellonman Posted November 15, 2011 Share Posted November 15, 2011 the injector clips can also come to same fait as the coil pack clips being internal metal contact clip can become weak and open up a large space where poor contact can be made just food for fault. also i see some where on you tube a guy that got a extesion bar and tapped the injectors to free sticky ones but i cant find in now sorry Quote Link to comment Share on other sites More sharing options...
peter richards Posted November 15, 2011 Author Share Posted November 15, 2011 quick update , swaped 1+2 with 5+6, and 5 still no engine drop when unpluged, so that leaves the problem in no 5 but shows that the plugs coil pack and clips are all working , so up to my mate now then to come and strip off the throttle body to get to the injectors Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 15, 2011 Share Posted November 15, 2011 You should be able to get 5 and 6 cylinder injector connectors on and off without stripping anything at all. If you are really careful with pin probes and mini croc clips you can swap the feed wires over. DO NOT SHORT anything out though. Before that, have you just tried removing the connectors and spraying their contacts and those of the injectors with switch cleaner or WD40, and refitting them? Quote Link to comment Share on other sites More sharing options...
peter richards Posted November 15, 2011 Author Share Posted November 15, 2011 no chris found it hard to get to the bolts holding the plate on , so ill leave it to the fella he is a mechanic , just will have to wait for him to come and do it . im glad ive tried to sort the problem bit daunting at first but with the help from you guys i got there . but the rest now ill leave to him . its nice to know the help is here peter Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 15, 2011 Share Posted November 15, 2011 Leave the plates alone, they only need to come off for you to be able to REMOVE the injectors. You should be able to diagnose with just pulling the connectors off the injectors, leaving them in situ. But sure, if in doubt, leave it alone Quote Link to comment Share on other sites More sharing options...
peter richards Posted November 15, 2011 Author Share Posted November 15, 2011 (edited) thanks chris will do . Edited November 15, 2011 by peter richards (see edit history) Quote Link to comment Share on other sites More sharing options...
Paul Posted November 15, 2011 Share Posted November 15, 2011 Peter, chill mate As you say it's an interesting thread, keep it going and good luck with sorting it. Quote Link to comment Share on other sites More sharing options...
Morpheus Posted November 16, 2011 Share Posted November 16, 2011 Peter, chill mate As you say it's an interesting thread, keep it going and good luck with sorting it. Then when you've exhausted every other option............ That's my first thought anyway, since the slightest hole or blow will always cause a misfire or rough idle, as will poor compression somewhere, also throughout the rev' range. Unless it's a proper intermittent puurrrrr, blip, puuurrr, blip, puuuurrrr, kind of a misfire but even that is usually an exhaust/gasket blow somewhere. Video would be so helpful with this sort of thing or everyone's just stabbing in the dark. Perhaps Supras are particularly bad for electrics or something? Always seems to be the first thing anyone thinks of. Coil packs, ECU's, etc. Please define 'misfire' Peter? I'd run a bottle of injector cleaner through it first on a nearly empty tank. Give it a good rinse inside before resorting to re-wiring. Sorry Chris, you're the man and all but are the basic mechanics of the engine sound? That's what I always ask myself anyway. Quote Link to comment Share on other sites More sharing options...
supra matt Posted December 6, 2011 Share Posted December 6, 2011 Did you fix this peter? Quote Link to comment Share on other sites More sharing options...
peter richards Posted December 6, 2011 Author Share Posted December 6, 2011 hi mate no not yet , got an injector coming from dude , and hecklers going to fit it for me in a few weeks , so hopefully it will work , fingers crossed and thanks for asking appreciate the interest . Quote Link to comment Share on other sites More sharing options...
supra matt Posted December 9, 2011 Share Posted December 9, 2011 Are that's a pain mate hope the injectors sort it for you keep us updated . :thumbup: Quote Link to comment Share on other sites More sharing options...
peter richards Posted December 9, 2011 Author Share Posted December 9, 2011 will do mate , Quote Link to comment Share on other sites More sharing options...
tomgeer Posted March 17, 2012 Share Posted March 17, 2012 Out of interest, have you got this sorted yet? I'm having a similar issue. I started my car up today after being garaged since October, i've serviced it over winter (plugs, coilpack clips, all fluids, filters, brakes, cambelt, auxiliary belt etc etc) tested it about 4 weeks ago and it ran perfectly. I have a spare set of coilpacks which i've swapped with the originals with no effect so that rules them out, i've cleaned the plugs (brand new but they were sooty) and cleaned the O2 sensor (about 3 years old), the car idles lumpy and misfires on boost. Drove it about 3 miles today and it doesn't improve I'm guessing it must be the igniter or an injector at this stage? Does anyone know why Quote Link to comment Share on other sites More sharing options...
Nic Posted March 17, 2012 Share Posted March 17, 2012 misfires on boost. Wrong heat range plugs or broken coil pack connectors are common causes of misfire on boost Quote Link to comment Share on other sites More sharing options...
peter richards Posted March 17, 2012 Author Share Posted March 17, 2012 hi guys , mine is sorted , simon fitted the injector and on idle now it sounds ok and pulling off the clips on eack coil the engine now dies , then picks back up on re connection . not had it out on the road for a blast as its sornd till next month. one thing i may add is, make sure the leads into the new clips are the right way round its easy to alternate them and if you do that cylinder wont work Quote Link to comment Share on other sites More sharing options...
tomgeer Posted March 18, 2012 Share Posted March 18, 2012 Thanks Nic/Peter, mine is sorted now, had a read through some old posts and seen one on putting the O2 sensor in a lemon to draw out the crap, just done that overnight, blew it off with the compressor this morning, refitted and is now running sweet. I'm not entirely sure why an O2 sensor would cause a misfire though. Unless Nic is thinking of another group buy, I guess i'll be ringing toyota for a new sensor in the morning. The sun is out, not a cloud in the sky, i'll have my Sunday fry up then go for a spin Quote Link to comment Share on other sites More sharing options...
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