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 rover 620SDI starts for a sec, then dies! 
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 Post subject: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 8:22 am 
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I have a Rover 620SDI 98- with some issues...

It starts for a second, then dies, over and over again.

I have a new dieselfilter installed for 600miles no problem.
Diesel comes to each injectorpipe when im trying to start the engine, so its getting fuel.
The smal hoses that goes from each injector is ok..

I have tried another battery, and all 3 keys i got to the car. I am thinkining it might be immobilizer problems? it wont recognize the key and shuts the fuel off?
what you guys think i should check next?

thanks in advance, and sorry for my poor english :)


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 10:13 am 
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it does sound like a immobiliser problem/stop solonoid issues to me, assuming these must have some kind of stop solonoid on the pump? id check the voltage to that little chap and maybe see if it will run with a 12v feed to this


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 8:16 pm 
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Fuel pump.

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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 8:26 pm 
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gearinator wrote:
Fuel pump.


But when i put the ignition on, fuel is leaking out of the fuelpipes to the injectors. Isnt that the way to see if the pump is bad? The second it runs,, it runs smooth. I tried to rev rev it when it starts, then it revs to 3500-4000 rpm, then it die, like fuel is shu.


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 8:33 pm 
Rovertech Kiloposter

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Depends. The primary fuel pump on my freelander would prime to start but would not continue to work once engine was engaged. At 1st I thought it was an electrical issue but turned out to be the actual pump.

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216 coupe charcoal- sold
nasp coupe white- sold
coupe turbo Tahiti- sold
Fdh turbo - sold
Nfr coupe turbo-sold
Poly coupe turbo-sold
Amaranth vvc coupe-sold
N152 FDH currently
N285 FDH currently
Plus 7 other coupes previously owned


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 8:40 pm 
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gearinator wrote:
Depends. The primary fuel pump on my freelander would prime to start but would not continue to work once engine was engaged. At 1st I thought it was an electrical issue but turned out to be the actual pump.


Hmm, so what do you suggest i do next?
How do i check the if the fuelpump works properly?


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sat Jan 31, 2015 9:19 pm 
Rovertech Kiloposter

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Well like you I got so confused as to why it was starting but not running I called in the experts who diagnosed it. I hate sending my cars to garages but it's the wife's daily for taking the kids to school so couldn't really be without it.

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216 coupe charcoal- sold
nasp coupe white- sold
coupe turbo Tahiti- sold
Fdh turbo - sold
Nfr coupe turbo-sold
Poly coupe turbo-sold
Amaranth vvc coupe-sold
N152 FDH currently
N285 FDH currently
Plus 7 other coupes previously owned


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sun Feb 01, 2015 8:01 pm 
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t16tony wrote:
it does sound like a immobiliser problem/stop solonoid issues to me, assuming these must have some kind of stop solonoid on the pump? id check the voltage to that little chap and maybe see if it will run with a 12v feed to this


I'm going to go with this because the pumps a vp37 on the sdi's so will be your typical job of rotary pump with stop solenoid.

The ecu will allow the engine start subroutine to run without affecting fuel delivery but as soon as control is handed from the start routine to the running routine, it will cut fuel if immo requirements not met (hence no problems starting but the almost instant cutout).

The 620 alarm unnit controls the starter doesn't it? in which case there might be a communication error between that and the ecu itself, which would allow the starter to operate but the ecu would never get the required code to keep it running

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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sun Feb 01, 2015 8:12 pm 
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dakta wrote:
t16tony wrote:
it does sound like a immobiliser problem/stop solonoid issues to me, assuming these must have some kind of stop solonoid on the pump? id check the voltage to that little chap and maybe see if it will run with a 12v feed to this


I'm going to go with this because the pumps a vp37 on the sdi's so will be your typical job of rotary pump with stop solenoid.

The ecu will allow the engine start subroutine to run without affecting fuel delivery but as soon as control is handed from the start routine to the running routine, it will cut fuel if immo requirements not met (hence no problems starting but the almost instant cutout).

The 620 alarm unnit controls the starter doesn't it? in which case there might be a communication error between that and the ecu itself, which would allow the starter to operate but the ecu would never get the required code to keep it running


I was at the garage today, and yes.. i think its something with the alarmunit/immobilizer ... so i guess i need to pay alot of money to get a new key code done, or is there any other way to bypass this?

where is the alarmunit/immobilizer located? i removed the battery both plus and minus from the car the whole night. still wouldnt run. i have tried all 3 keys, only 2 of them work. it have been running for a year with no problem. just this last 2 months, it wont start. the battery in the keys to lock the doors are bit weak even tho i changed the battery in it when i bought the car. it works now and then. perhaps i should change the batteries in the key?


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sun Feb 01, 2015 10:39 pm 
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LocKtar wrote:
I have a Rover 620SDI 98- with some issues...

..., and all 3 keys i got to the car. I am thinkining it might be immobilizer problems? it wont recognize the key and shuts the fuel off?



When you say all 3 keys, does this include the red key ??

If you have used the red key in the ignition unfortunately you've probably erased the immobiliser code, so car no longer reognises your key. I'm sorry to say in this instance you will need to source new, matched ecu, keys and 5AS unit.

Unfortunately, whilst the red key was used to program new keys with the immobiliser code unfortunately inserting in the red key in the ignition barrel often has this horrific consequence. With the demise of Rover all the red key is good for is keeping as a template to cut new keys.

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99 T reg 620 Ti
13 Chev Captiva LTZ
Gone, not forgotten:
98 620 Si
94 Primera 1.6LX
96 Saab 900XS; conrod leaves block, RIP
94 218 SLDt
Tempra Est1.9dt
85 VW Golf 1.3CL
91 Ren 19 1.7TXE
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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sun Feb 01, 2015 11:02 pm 
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As above

It is an immobiliser issue.

If the immobiliser doesn't send the ECU a code within 1 second of the engine starting then the ECU shuts down. Usually there will be a green flashing key icon on the dash when this happens.

If you have used the red key in the ignition then it is not going to be a simple fix I'm afraid as this wipes the immobiliser memory

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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Sun Feb 01, 2015 11:35 pm 
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E_T_V wrote:
As above

It is an immobiliser issue.

If the immobiliser doesn't send the ECU a code within 1 second of the engine starting then the ECU shuts down. Usually there will be a green flashing key icon on the dash when this happens.

If you have used the red key in the ignition then it is not going to be a simple fix I'm afraid as this wipes the immobiliser memory


Guess this car is going to the junkyard then :)

Thanks for all the help guys!


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Mon Feb 02, 2015 11:57 am 
Rovertech Kiloposter


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LocKtar wrote:
E_T_V wrote:
As above

It is an immobiliser issue.

If the immobiliser doesn't send the ECU a code within 1 second of the engine starting then the ECU shuts down. Usually there will be a green flashing key icon on the dash when this happens.

If you have used the red key in the ignition then it is not going to be a simple fix I'm afraid as this wipes the immobiliser memory


Guess this car is going to the junkyard then :)

Thanks for all the help guys!



LocKtar, where are you located ?

You might be able to obtain keys and an ECU from someone breaking a car.

_________________
99 T reg 620 Ti
13 Chev Captiva LTZ
Gone, not forgotten:
98 620 Si
94 Primera 1.6LX
96 Saab 900XS; conrod leaves block, RIP
94 218 SLDt
Tempra Est1.9dt
85 VW Golf 1.3CL
91 Ren 19 1.7TXE
86 Cavalier1.6L
84 Cit BX16TRS


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Mon Feb 02, 2015 12:04 pm 
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Pinkie15 wrote:
LocKtar wrote:
E_T_V wrote:
As above

It is an immobiliser issue.

If the immobiliser doesn't send the ECU a code within 1 second of the engine starting then the ECU shuts down. Usually there will be a green flashing key icon on the dash when this happens.

If you have used the red key in the ignition then it is not going to be a simple fix I'm afraid as this wipes the immobiliser memory


Guess this car is going to the junkyard then :)

Thanks for all the help guys!



LocKtar, where are you located ?

You might be able to obtain keys and an ECU from someone breaking a car.


I live in Sweden, Stockholm. So, if i change the ecu and Keys from another car i can get it to start? But then i will have diffrent keys to the doors i Guess? I'll check with the junkyard what ecu and Keys will cost, they car is not worth that muc, perhaps 1200euros.


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Mon Feb 02, 2015 12:16 pm 
Rovertech Kiloposter


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Yes, a new ECU with matched keys should get you moving again. Should have said you will also need ignition barrel as well.

I'm not sure what "model" number is of the ECU you will need. Hopefully someone who knows will visit this thread soon to provide guidance.

Yes, you would have separate keys for locks and ignition. However, if you find a donor car you could also take door and boot locks and change them over as and when time allows.


We did used to have a couple of Sweden based 600 owners on the site, "Ulmenkott" was one, not sure if they are still active though.

_________________
99 T reg 620 Ti
13 Chev Captiva LTZ
Gone, not forgotten:
98 620 Si
94 Primera 1.6LX
96 Saab 900XS; conrod leaves block, RIP
94 218 SLDt
Tempra Est1.9dt
85 VW Golf 1.3CL
91 Ren 19 1.7TXE
86 Cavalier1.6L
84 Cit BX16TRS


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Mon Feb 02, 2015 12:28 pm 
RT GOD


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Two options to save the car. Neither will cost a great deal.

1. Send ECU to the UK to get the immobiliser disabled.

2. Replace immobiliser and ECU and key from a scrap car. You can swap the chip into the old key if you are ingenious (you cut the chip out and glue it into the new key).

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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Mon Feb 02, 2015 12:41 pm 
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E_T_V wrote:
Two options to save the car. Neither will cost a great deal.

1. Send ECU to the UK to get the immobiliser disabled.

2. Replace immobiliser and ECU and key from a scrap car. You can swap the chip into the old key if you are ingenious (you cut the chip out and glue it into the new key).


Sending ecu to uk seems like the easiest thing, where do i send it, and what would it cost?


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 Post subject: Re: rover 620SDI starts for a sec, then dies!
PostPosted: Mon Feb 02, 2015 2:09 pm 
RT GOD


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I'm not sure on the cost, but I think these guys can do the 600 diesel decoding

http://www.bestofbritishrover.com/

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