Mike Brownlie Posted April 16, 2009 Share Posted April 16, 2009 Hi me again with another problem... ! Engine > 89 range rover 3.9 Efi When cranking what voltages should i have at the ignition amplifier ?? What basic voltage checks can i do to make sure all is well ? The engine was running when it was in the range rover, but wont start in the 90 Cheers Mike Quote Link to comment Share on other sites More sharing options...
Dave W Posted April 16, 2009 Share Posted April 16, 2009 You should have 12v on both when it's not turning over. The ignition coil gets it's 12v supply from the amplifier wiring, on their is a joint inside the engine loom that supplies a feed to one side of the amplifier - the wire that is also connected to the +ve terminal of the coil. Quote Link to comment Share on other sites More sharing options...
steve_d Posted April 16, 2009 Share Posted April 16, 2009 If you look at the terminals on the amp they form a T shape. Ignition switched live (White) goes to coil positive and the ignition amp (leg of the T) Ignition amp (top of the T) (White/black) goes to coil negative. If running the ecu then there should be a resistor from the coil negative and the other end connects to the ecu. Steve Quote Link to comment Share on other sites More sharing options...
Mike Brownlie Posted April 24, 2009 Author Share Posted April 24, 2009 Thanks to all who helped ! For a v8 to run it helps if the fuel pump is wired correctly ! Its no use sucking all the fuel out of the engine !! Quote Link to comment Share on other sites More sharing options...
hammoj28 Posted April 24, 2009 Share Posted April 24, 2009 Quote Link to comment Share on other sites More sharing options...
Mike Brownlie Posted April 24, 2009 Author Share Posted April 24, 2009 you should stick to making the tea !! infact, you never made me a cup of tea once ?! lol Quote Link to comment Share on other sites More sharing options...
steve_d Posted April 24, 2009 Share Posted April 24, 2009 Thanks to all who helped ! For a v8 to run it helps if the fuel pump is wired correctly ! Its no use sucking all the fuel out of the engine !! For most the lack of a whirring sound is a dead giveaway. Steve Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 25, 2009 Share Posted April 25, 2009 At least it's working now - and he had the guts to post up and admit to it Quote Link to comment Share on other sites More sharing options...
hammoj28 Posted April 25, 2009 Share Posted April 25, 2009 Yeah, I am officially carp at wiring..... It was making a noise, just not pumping. Thanks to Mikes common sense it now works. Hahahaha. Quote Link to comment Share on other sites More sharing options...
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