dr_jekyll Posted June 2, 2011 Share Posted June 2, 2011 hello all , bit of problem going on at the moment. basicly upon turning the key nothing is happening. have a full set of dash lights but not even attempting to crank. i have been cheking things all day and its driving me mad. so far i have found that the thin wire at the back of the starter motor is not turning live when the key is over. also the staarter motor relay wire on the ecu is not going live when the key is over. any ideas as why theis could be as im out of plans Quote Link to comment Share on other sites More sharing options...
Guest wantthatone Posted June 2, 2011 Share Posted June 2, 2011 whers nevins the technical one? Quote Link to comment Share on other sites More sharing options...
snake Posted June 2, 2011 Share Posted June 2, 2011 Fuse ? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 2, 2011 Author Share Posted June 2, 2011 all sorted , just got off the phone to the legend that is ryan g Quote Link to comment Share on other sites More sharing options...
Guest wantthatone Posted June 2, 2011 Share Posted June 2, 2011 and? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 2, 2011 Author Share Posted June 2, 2011 its turning over but it wont fire. ive had enough for a while. Quote Link to comment Share on other sites More sharing options...
Homer Posted June 2, 2011 Share Posted June 2, 2011 CPS and CAM sensor wires okay? Is it getting fuel pressure, spark etc? You know your way around an engine so not sure what stuff is already ruled out. What ECU are you using? Some will have some good diag tools to check for sensor readings.. Quote Link to comment Share on other sites More sharing options...
Scott Posted June 2, 2011 Share Posted June 2, 2011 I had this the other day. Was the upper coolant temperature sensor. I had the warning light on showing a fault, at that point the car was starting and running fine. I removed the battery terminal in order to clear the ECU and the codes etc. When I went to start it again it wouldn't fire, whatever readings it takes from the coolant temp sensor for initial start must be cruical as it would start fine before I cleared the info. I know you are running a single but it's something else to look at Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted June 2, 2011 Share Posted June 2, 2011 ive had this a fiew times check your battery main earth is actually getting a good earth on the body Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 3, 2011 Author Share Posted June 3, 2011 i cant se anything obviouse. wires are all as should be , earth is good, all have continuity, ill take the inlet off and start from scrathch with a compression and oil pressure check ect Quote Link to comment Share on other sites More sharing options...
CanisLupus Posted June 3, 2011 Share Posted June 3, 2011 Mine wouldn't start when it got warm and had several other issues... turned out to be the grounding of the ECU. Worth a look Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 3, 2011 Author Share Posted June 3, 2011 ok , here is where we stand. both ecu grounds are fine. igniter signal is fine. timeing is fine @10dbtdc compression test results 1 140 2 150 3 155 4 150 5 155 6 147 bare in mind its new rings on a used bore that have not yet bedded in so im expecting that to go up but still there plenty of compression to start. there was a strong smell of fuel when removing the plugs so i may have flooded a wee bit so fingers crossed. not getting any error signals ?????? mega confused Quote Link to comment Share on other sites More sharing options...
Scott Posted June 3, 2011 Share Posted June 3, 2011 Flooded sups are a nightmare to start, been there myself. Dry crank it a few times then give it a go. Quote Link to comment Share on other sites More sharing options...
barneybrendan Posted June 3, 2011 Share Posted June 3, 2011 Another thing ive had is the plugs going all to pot for some reason.the spark would come from the body and not the tip this ment the car would flood and wouldnt fire. Quote Link to comment Share on other sites More sharing options...
CanisLupus Posted June 3, 2011 Share Posted June 3, 2011 Maybe i overlooked it but spark is fine? Quote Link to comment Share on other sites More sharing options...
tomgeer Posted June 3, 2011 Share Posted June 3, 2011 I would guess it's just flooded as mentioned above, i've had this before, it wouldn't fire at all. I took the plugs out, left it overnight and put them back in the next day, it fired up straight away. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 3, 2011 Author Share Posted June 3, 2011 im pinning all my hopes on flooding at the moment as i realised i didnt change the injector size on the ecu from 330to 550 on the first few cranks so it would have been spitting in far to much fuel (crosses figers) . spark is good going on the old fasiond screwdriver test. think il bolt a few more earths to the engine just to make sure . ill leave it over the weekend and get back on itmonday as im fed up of it at the moment Quote Link to comment Share on other sites More sharing options...
Scott Posted June 3, 2011 Share Posted June 3, 2011 Did you dry crank it? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 3, 2011 Author Share Posted June 3, 2011 yes dry cranked it to get the oil pressure then replaced the efi and went for the start but nata and the mssion began Quote Link to comment Share on other sites More sharing options...
Scott Posted June 3, 2011 Share Posted June 3, 2011 yes dry cranked it to get the oil pressure then replaced the efi and went for the start but nata and the mssion began I meant since the hassles started. When you flooded the engine you filled the chambers with fuel. Pull the EFI fuse and give it a few cranks (10 seconds), leave it for 10 mins then repeat. Stick the EFI fuse back in and give it a crank. Worked for me Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 3, 2011 Author Share Posted June 3, 2011 oh yea , well i did a full copression test so its had pleant of dry cranking since. ill be out of the workshopover the weekend so ill give it another go in monday. now im happy everything has been checkes over a few times . if it dosent fire this time ill be real kerfuffeld Quote Link to comment Share on other sites More sharing options...
J_Supra_07 Posted June 4, 2011 Share Posted June 4, 2011 It will mate, you know mine fired up straight away after airing it out. See you Monday Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 4, 2011 Share Posted June 4, 2011 Try a brand new set of plugs in it, once fouled badly the old plugs may never work properly again without sand blasting them clean. Garages with a proper plug cleaning machine are few and far between now, I treasure mine Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted June 4, 2011 Author Share Posted June 4, 2011 will do. thers a jag and aston specialist just opend next to me and i think they have a fancy plug cleaner so ill i pop in to them , the plugs have only done 1 sprint day so id like to save them if i can Quote Link to comment Share on other sites More sharing options...
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