Mud-club

Vehicle & Technical => Range Rover => Topic started by: patoleary on April 10, 2007, 17:03:55

Title: RR classic 3.5 1988..ECU
Post by: patoleary on April 10, 2007, 17:03:55

HI HOPING FOR SOME HELP..ENGINE WONT START AFTER DISCONNECTING COIL TO DISTRIBUTOR CABLE IN ORDER TO PRIME A RECONDITIONED POWER STEERING UNIT..IVE GOT FUEL FLOW AND A GOOD SPARK..BUT NO GO SOMEHOW I SUSPECT THE ecu..IS IT POSSIBLE TO REMOVE IT FGOR SPECIALIST CHECK AND IS THERE A SPECIAL PROCEDURE FOR REFITTING..THANKS IN ANTISIPATION..PAT O'LEARY

Title: RR classic 3.5 1988..ECU
Post by: hairyasswelder on April 10, 2007, 19:28:35

Can you 'borrow' one that you know works?  It is probably cheaper to buy a used one than have it checked  :shock:
I just disconnect the battery then undo the multi-plug, then unscrew from mount  :wink:

Steve

p.s. Mind your capitals, some peeps take it seriously (shouting)  :lol:  :lol:

Title: RR classic 3.5 1988..ECU
Post by: hairyasswelder on April 10, 2007, 19:33:53

If you bring yours here I can put it on mine to test if you like  :wink:

Steve

Title: Re: RR classic 3.5 1988..ECU
Post by: tomcat on April 10, 2007, 23:38:59

Quote from: "patoleary"

HI HOPING FOR SOME HELP..ENGINE WONT START AFTER DISCONNECTING COIL TO DISTRIBUTOR CABLE IN ORDER TO PRIME A RECONDITIONED POWER STEERING UNIT..IVE GOT FUEL FLOW AND A GOOD SPARK..BUT NO GO SOMEHOW I SUSPECT THE ecu..IS IT POSSIBLE TO REMOVE IT FGOR SPECIALIST CHECK AND IS THERE A SPECIAL PROCEDURE FOR REFITTING..THANKS IN ANTISIPATION..PAT O'LEARY

...........................................................................................................
hi.
   if you are sure you have got fuel to the pressure rail and you have a good strong spark then you need to check the neg wire at the coil for a good connection as this  wire feeds a signal to the ecu for switching the injectors. you can allso check the resistor pack relay which is located under the passenger front seat,the quickest way to test the injectors is to pull off one injector plug and test for a pulsing volage of 3volts dc when you crank the engine, a single l.e.d. is good for this test but an avo meter dose just as well,you should allso get a voltage reading from the cold start injector from cold its approx 5-10 seconds depending on the temp of the engine,dont condem the ecu just yet they are quite robust, but not to rule it out all together,i hope this helps if you need any more info just pm me.
                                  regards john t. :D

Title: RR classic 3.5 1988..ECU
Post by: dave362 on April 11, 2007, 09:25:15

I have a used ecu that you can buy

Title: RR classic 3.5 1988 ECU
Post by: patoleary on April 11, 2007, 17:00:45

thanks to john t tomcat checked the neg lead and jiggled the coil . motor started first time..tomcat you had it right im gratefull. thanks also to steve and dave  for offering help ..your a good bunch...regards pat oleary