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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Piece of junk V70 wont start :@Views : 1634 Replies : 14Users Viewing This Thread : |
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Oct 7th, 2021, 01:43 | #1 |
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Piece of junk V70 wont start :@
Got a really odd one here
V70 1999 2.4 10V with the earlier distributor type engine. The car cranks but will not start whatsoever. All warning lights come on as they should except engine managment. Have replaced antenna ring, cleared fault codes on Vida, IMM321 keeps coming back up and it still wont start. All fuses are good. Fuel relay and main relay swapped out. Checking wiring diagram im suspicious its the main engine ECU. Has anyone else had this problem? |
Oct 7th, 2021, 09:43 | #2 |
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How certain are you that the Engine Management Light bulb is working? If the bulb is good, then the strongest indication to me is the lack of EML. Favourite for this would not be the ECU itself, but the power feed to it in my opinion. Sorry I can't help with a pin-out of the ECU to tell you where the main power feed comes in, hopefully others on here will be able to do that. You could try just re-seating it in its socket?
So long as you KNOW the bulb is good, then I'd be chasing the lack of EML before worrying about the non-start.
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Oct 7th, 2021, 10:20 | #3 |
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Just to double check, can you definitely hear the fuel pump switching on at the rear of car on key pos II?
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Oct 7th, 2021, 14:39 | #4 |
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Oct 8th, 2021, 03:18 | #6 | |
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Quote:
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Oct 8th, 2021, 03:19 | #7 |
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Oct 8th, 2021, 03:25 | #8 |
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Oct 8th, 2021, 09:36 | #9 |
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So you're getting fuel to the fuel rail.Are the injectors working[i.e. is petrol actually getting into the cylinders]? I take it you have checked the inside of the distributor cap and rotor arm and getting a spark at the plugs?
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Oct 10th, 2021, 03:52 | #10 | |
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There is no spark and no pulse from the injectors either, dizzy cap and rotor arm are in good order and virtually new genuine Volvo parts. All fuses have been checked, fuel and main relays have been swapped. It had no symptoms before this and its throwing immobiliser IMM321 on Vida and wont clear. |
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