Vivaro Power loss
Discussion
Been half heartedly trying to sort this problem out for a friend for a while now but it's getting to the point where I'd like to sort it purly for the challenge.
2003 1.9 Vivaro revs really slowly until it gets to 2300rpm, like major turbo lag. Once over 2300rpm it drives completely normally, it won't even rev in neutral. I ave checked the fuel pressure via my scanned and it was low and unsteady, around 250-290bar. I changed the fuel filter and checked all the fuel lines for leaks, it's now about 300-320bar so good improvement there but still running the same.
The MAF sensor is goosed but I have tried swapping it with a known good one which made no difference, I have read lots of reports saying they don't make that much difference. I didn't reset the error codes when trying the new one but will do so as soon as I get chance to pinch one again to see if it makes any difference.
This looks to be a very common problem but one people don't seem to have been able to come up with a definitive answer to. Any body have any decent ideas please? I don't really want to go buying new bits all over the place, he hasn't got much money so I'd like to hit the problem first time.
2003 1.9 Vivaro revs really slowly until it gets to 2300rpm, like major turbo lag. Once over 2300rpm it drives completely normally, it won't even rev in neutral. I ave checked the fuel pressure via my scanned and it was low and unsteady, around 250-290bar. I changed the fuel filter and checked all the fuel lines for leaks, it's now about 300-320bar so good improvement there but still running the same.
The MAF sensor is goosed but I have tried swapping it with a known good one which made no difference, I have read lots of reports saying they don't make that much difference. I didn't reset the error codes when trying the new one but will do so as soon as I get chance to pinch one again to see if it makes any difference.
This looks to be a very common problem but one people don't seem to have been able to come up with a definitive answer to. Any body have any decent ideas please? I don't really want to go buying new bits all over the place, he hasn't got much money so I'd like to hit the problem first time.
Two things it might be.
1. clutch switch which stops it reving up when not in gear and foot on clutch they can go faulty, common problem, google that bad boy.
2. water ingress from dodgy scuttle seal drips on no.4 injector and electrics. You can see by trying to pull the injectors, if they won;t move or there is rust and gunk in the injection electrics box you might have to google Vivaro stuck injector for your next step.
Pop a update if you do get it fixed and how.
1. clutch switch which stops it reving up when not in gear and foot on clutch they can go faulty, common problem, google that bad boy.
2. water ingress from dodgy scuttle seal drips on no.4 injector and electrics. You can see by trying to pull the injectors, if they won;t move or there is rust and gunk in the injection electrics box you might have to google Vivaro stuck injector for your next step.
Pop a update if you do get it fixed and how.
Just been out to get the van out for my friend and pu the scanner on it. The clutch pedal is working okay, the Solus it's seeing the clutch engage and disengage. I have read the cam sensor can cause problems too, would this cause these sort of problems? I can't see how the engine would run at all if the cam sensor was dead.
crossy67 said:
This looks to be a very common problem but one people don't seem to have been able to come up with a definitive answer to. Any body have any decent ideas please? I don't really want to go buying new bits all over the place, he hasn't got much money so I'd like to hit the problem first time.
There's lots of problems on these caused by lots of different things . If you aren't able to test things in detail then you are into guessing, swapping parts or getting someone in.Tampon said:
Two things it might be.
1. clutch switch which stops it reving up when not in gear and foot on clutch they can go faulty, common problem, google that bad boy.
2. water ingress from dodgy scuttle seal drips on no.4 injector and electrics. You can see by trying to pull the injectors, if they won;t move or there is rust and gunk in the injection electrics box you might have to google Vivaro stuck injector for your next step.
Clutch switch wouldn't normal cause lag at low revs and the water ingress is generally on the later 2.0 engines.1. clutch switch which stops it reving up when not in gear and foot on clutch they can go faulty, common problem, google that bad boy.
2. water ingress from dodgy scuttle seal drips on no.4 injector and electrics. You can see by trying to pull the injectors, if they won;t move or there is rust and gunk in the injection electrics box you might have to google Vivaro stuck injector for your next step.
Disco_Biscuit said:
Egr play up, unbolt it and rotate it 180 degrees effectively blankes it off.
EGR issues would make some sense, I thought these were held in with three bolts and couldn't be twisted but I may be wrong, worth popping out to see if it's stuck open anyway.Steve H said:
Tampon said:
Two things it might be.
1. clutch switch which stops it reving up when not in gear and foot on clutch they can go faulty, common problem, google that bad boy.
2. water ingress from dodgy scuttle seal drips on no.4 injector and electrics. You can see by trying to pull the injectors, if they won;t move or there is rust and gunk in the injection electrics box you might have to google Vivaro stuck injector for your next step.
Clutch switch wouldn't normal cause lag at low revs and the water ingress is generally on the later 2.0 engines.1. clutch switch which stops it reving up when not in gear and foot on clutch they can go faulty, common problem, google that bad boy.
2. water ingress from dodgy scuttle seal drips on no.4 injector and electrics. You can see by trying to pull the injectors, if they won;t move or there is rust and gunk in the injection electrics box you might have to google Vivaro stuck injector for your next step.
The scuttle leak is common on all vivaro/traffics/primastars of all ages, the earlier they are (predominantly 1.9 engines) the more likely it is to effect them. they did a fix on later models quietly when they were in for servicing which mean a 2.0 model will have more chance of being "fixed" than earlier 1.9 models ( mine wasn't certainly) The 1.9 suffers especially as the drip that comes through seems to run perfectly into no.4 injector on the 1.9 engine layout.
Just for anyone who stumbles across this thread in the future here is how you can fix it yourself
http://www.vauxhallownersnetwork.co.uk/index.php?t...
As for the Egr vavles, they have three bolts but you can split the front and back and twist the front part 180 deg round so it looks liek the star of david and then bolt back through the hole on the back plate which keep the vavle in place blanked off and unable to move.
Should look liek this when finished
Edited by Tampon on Tuesday 11th February 22:29
Ahhh, I see regarding the EGR.
I have read the fuel pressure should be 293bar at tick over. The oil filter and bowl was clean with just a bit of sludge but no metal filings at all.
I am only changing the sensors that are known to have issues, the MAF is fixed at 6.3kg/h (I think, memory not the best) and there is an air temp sensor fault so as that sensor is only a few ££'s might as well do that too.
I have read the fuel pressure should be 293bar at tick over. The oil filter and bowl was clean with just a bit of sludge but no metal filings at all.
I am only changing the sensors that are known to have issues, the MAF is fixed at 6.3kg/h (I think, memory not the best) and there is an air temp sensor fault so as that sensor is only a few ££'s might as well do that too.
Hi All.
Just a quick update. I replaced the air temp sensor, no change. didn't really expect there to be but as it was a fault code I thought best change it for the few ££'s it cost.
Today I received a new MAF sensor, I received a MAP sensor last week after the man on the phone miss heard me. Any way, installed the new MAF, reset the codes and bingo. It runs like a good un. This van has had this problem for 7 years!!!! I am dead pleased to have been able to sort this problem for a good friend.
Thanks all for your input, it's been very helpful.
Just a quick update. I replaced the air temp sensor, no change. didn't really expect there to be but as it was a fault code I thought best change it for the few ££'s it cost.
Today I received a new MAF sensor, I received a MAP sensor last week after the man on the phone miss heard me. Any way, installed the new MAF, reset the codes and bingo. It runs like a good un. This van has had this problem for 7 years!!!! I am dead pleased to have been able to sort this problem for a good friend.
Thanks all for your input, it's been very helpful.
Hi all sorry I haven't been about trying to sort this van , update is new egr new boost sensor new boost pressure solonoid , been on diagnostics fault codes are p0400 egr flow excessive p0100 mass air flow circuit low p0105 boost pressure sensor circuit low input p1125 accelerator peddle pos sys . ??? All new parts inc maf what the hell is wrong with this thing ? Do I have faulty maf ? Or is it ecu? Or is it broken wire from egr that would as I'm told affect all of these things inc fuel pressure valve ?
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