Polo6C Posted December 9, 2016 Report Share Posted December 9, 2016 Hi! My lupo didnt start 2 weeks ago so i used vagcom & i got fault code G28 Engine speed sensor. I replaced the sensor & it still doesnt start. Error code is gone. After that vagcom gave me error code: 18010 - Power Supply Terminal 30: Voltage too Low P1602 - 35-10 - - - Intermittent This error code usually comes after disconnecting the battery. but just to be sure i replaced the battery because it was still a old full calcium one. So what i replaced from the ignition : ( new parts ) Battery , coil pack , spark plugs , engine speed sensor (Crankshaft sensor) (G28), all ignition cables No more vagcom codes & car wont start, it just keeps cranking. Only thing i can think of now is the starter motor, i dont know if they give error codes? what u guys think? thanks! Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted December 9, 2016 Report Share Posted December 9, 2016 (edited) check all the earth connections from battery to chassis, and other earth connections you can find, simply find them all clean them up and stick them back on, a bad earth is just as bad as a bad live connection if it its cranking its unlikely to be the starter motor, unless its quite obviously cranking slow, check for spark then check for fuel Edited December 9, 2016 by Mobieus_uk Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 9, 2016 Author Report Share Posted December 9, 2016 12 minutes ago, Mobieus_uk said: check all the earth connections from battery to chassis, and other earth connections you can find, simply find them all clean them up and stick them back on, a bad earth is just as bad as a bad live connection if it its cranking its unlikely to be the starter motor, unless its quite obviously cranking slow, check for spark then check for fuel I now think its maybe a fuel problem because i keep starting over & over the spark plugs dont get wet. also read something about a blown fuse but i think they give error codes on vagcom. Quote Link to comment Share on other sites More sharing options...
Rich Posted December 9, 2016 Report Share Posted December 9, 2016 check the fuse, give it a twelve volt jump off a live and see if you hear it go. Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted December 9, 2016 Report Share Posted December 9, 2016 can you hear the fuel pump kick in when you turn on the ignition?, if not check the fuses Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 10, 2016 Author Report Share Posted December 10, 2016 20 hours ago, Mobieus_uk said: can you hear the fuel pump kick in when you turn on the ignition?, if not check the fuses Checked all my fuses today & they are all okay. dont really know what sound a fuel pump should make. ive read today the fuel pump or fuel relay dont give a vagcom code so this can maybe be the problem. Quote Link to comment Share on other sites More sharing options...
Rich Posted December 10, 2016 Report Share Posted December 10, 2016 if you chuck 12v at the fuse you will know. Quote Link to comment Share on other sites More sharing options...
Pete Posted December 11, 2016 Report Share Posted December 11, 2016 Have you tried a camshaft sensor? Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 11, 2016 Author Report Share Posted December 11, 2016 (edited) 21 hours ago, Rich said: if you chuck 12v at the fuse you will know. i checked the fuel pump fuse voltage & it only gets 3 volts. EDIT !!! When i crank the car the fuse gets 12V. so the fuel pump relays clicks when i turn on the ignition where can the problem be? thnx! Edited December 11, 2016 by Polo6C Quote Link to comment Share on other sites More sharing options...
Rich Posted December 11, 2016 Report Share Posted December 11, 2016 can you hear the fuel pump when you lift the rear seat up? is it getting 12v at the plug 1 Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 11, 2016 Author Report Share Posted December 11, 2016 Just now, Rich said: can you hear the fuel pump when you lift the rear seat up? is it getting 12v at the plug im gonna check that now ! how can i test the plug the right way ? thnx Quote Link to comment Share on other sites More sharing options...
Rich Posted December 11, 2016 Report Share Posted December 11, 2016 flip passenger seat, undo three screws on a cool looking black panel. turn the ignition on and listen for a noise. if you hear nothing take the plug off, check the brown and red plugs have 12v. **** the top of the pump if necessary. Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 11, 2016 Author Report Share Posted December 11, 2016 1 hour ago, Rich said: flip passenger seat, undo three screws on a cool looking black panel. turn the ignition on and listen for a noise. if you hear nothing take the plug off, check the brown and red plugs have 12v. **** the top of the pump if necessary. I have checked it & the red wire gets 12V when i crank the engine. the brown wire gets nothing. i tested the other 2 wires & the purple one gets voltage too Quote Link to comment Share on other sites More sharing options...
Rich Posted December 11, 2016 Report Share Posted December 11, 2016 the other's are for the senders. does the pump work? can you hear it? Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 11, 2016 Author Report Share Posted December 11, 2016 38 minutes ago, Rich said: the other's are for the senders. does the pump work? can you hear it? i cant hear the pump is it normal the brown wire doesnt get voltage? Quote Link to comment Share on other sites More sharing options...
Rich Posted December 11, 2016 Report Share Posted December 11, 2016 brown = earth. no voltage. Quote Link to comment Share on other sites More sharing options...
cj1 Posted December 11, 2016 Report Share Posted December 11, 2016 54 minutes ago, Rich said: brown = earth. no voltage. Whilst on the face of it most of us would already know that... 5 hours ago, Rich said: flip passenger seat, undo three screws on a cool looking black panel. turn the ignition on and listen for a noise. if you hear nothing take the plug off,check the brown and red plugs have 12v. **** the top of the pump if necessary. Quote Link to comment Share on other sites More sharing options...
Rich Posted December 12, 2016 Report Share Posted December 12, 2016 I'm going to say 12v in a circuit. Quote Link to comment Share on other sites More sharing options...
cj1 Posted December 12, 2016 Report Share Posted December 12, 2016 4 hours ago, Rich said: I'm going to say 12v in a circuit. Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 12, 2016 Author Report Share Posted December 12, 2016 6 hours ago, Rich said: I'm going to say 12v in a circuit. so is my pump broken ? i really dont know what else i can do now. Quote Link to comment Share on other sites More sharing options...
Pete Posted December 12, 2016 Report Share Posted December 12, 2016 Well if it's supposed to be getting 12v and it's only getting 3v I'd start looking at that instead of the pump. Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 12, 2016 Author Report Share Posted December 12, 2016 16 minutes ago, Pete said: Well if it's supposed to be getting 12v and it's only getting 3v I'd start looking at that instead of the pump. it gets 12v when i crank the car & 3v with contact on. is it supposed to get 12v then? Quote Link to comment Share on other sites More sharing options...
Pete Posted December 12, 2016 Report Share Posted December 12, 2016 I'm not sure, I would've thought it should get 12v the whole time when it's operating, like when it kicks in the prime the system when you open your door. Have you tried taking the fuel filter line to the engine off and seen if fuel is pushed through the filter when the car is cranking? Quote Link to comment Share on other sites More sharing options...
Polo6C Posted December 12, 2016 Author Report Share Posted December 12, 2016 18 minutes ago, Pete said: I'm not sure, I would've thought it should get 12v the whole time when it's operating, like when it kicks in the prime the system when you open your door. Have you tried taking the fuel filter line to the engine off and seen if fuel is pushed through the filter when the car is cranking? i just tested that & there is no fuel comming trough. Quote Link to comment Share on other sites More sharing options...
Pete Posted December 12, 2016 Report Share Posted December 12, 2016 Is there any fuel coming up the line to the filter? Quote Link to comment Share on other sites More sharing options...
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