Grazie per il consiglio !
Il prblema e' che questo tipo di debimetro e' a "filo caldo", cioe' e' caratterizzato da un filo sottilissimo che viene riscaldato e che e in grado di fornire un segnale proporzionale alla massa d'aria in ingresso al motore, percio' e' un apparecchio molto delicato, addirittura mi hanno detto che quando il filo e' caldo, basta un piccolo urto per romperlo ..., di conseguenza e' bene accertarsi delle buone condizioni del ricambio, anche perche' tutti quelli che ho trovato sino ad ora erano decisamente malridotti ...
Questo problema non sussite con i debimetri di nuova generazione, che invece utilizzano un film sottile al posto del filo caldo.
Per chi ha problemi al minimo dei motori ecotec, allego questo file reperito su un sito inglese in cui si dice che la Opel ha emanato una circolare interna nel novembre del 1999 in cui spiegava come risolvere i problemi di minimo dei sudetti motori .... correte dal vostro meccanico e chiedete conferma !
PROBLEMS WITH THE 2.0 XEV & VECTRA
Usful messages previously on this messageboard :-
CAMSHAFT SENSOR MODIFICATION
ECU error Code 92 is a cam shaft sensor failure.
Eventually they admitted there is a small mod to the sensor itself. The mounting hole in the sensor is enlarged to allow it to sit closer to the switch lobes on the cam.
Problem solved.
IDLE VALVE MODIFICATION
I cleaned the butterfly in the throttle body which made a little difference, but to cure the problem completely there is quite a bit of work to be done and it will cost approx Ł230 from a Vauhall dealer.
The work involves replacing the idle sensor valve with a new updated version which has an ‘X’ by the part number (Ł110 +VAT), and then enlarging a hole to 9mm somewhere around the throttle position sensor, and finally calibrating one of the sensors to 0.?? Volts.
mikjc@cwcom.net
FLAME TRAP (IDLE PROBLEMS)
Car featured S'98 2.0 SRi
Engine idling problems been cutting out when idling or after engine braking and idling high, sometimes 2000-3000 rpm !!!! They have now fitted a flame trap in the breather hose from the rocker cover to the throttle body housing. Vauxhall sent out technical info to dealers regarding a the Flame Trap (NOV '99). So, if your Vectra Ecotec 2.0 engine has been playing up when idling, get off to your local Vauxhall dealer and ask them to fit a flame trap and then run the diagnostics to setup the base idle etc.
from robert.redden@virgin.net
NO DOBOUT MOST OF YOU WITH ECOTEC CAVERLIER, CALIBRA,ASTRA OR VECTRA HAVE SUFFERED STALLING WHEN APPROACHING JUNCTIONS OR ROUNDABOUTS,MAYBE HAVING STOPPED AT A JUNCTION THE IDLE IS ERRATIC BEFORE THE ENGINE CUTS OUT OR THE IDLE WONT COME DOWN.
NOT OT WORRY VAUXHALL HAVE A FIX!
THE PROBLEM IS BAISICLY TWO FOLD FIRSTLY THE SMALL CRANK CASE BREATHER (SMALL HOSE FROM CAM COVER TO THROTTLE/INLET MANIFOLD)GETS BLOCKED AT THE BRASS FITTING IN THE MANIFOLD,THE FITTING HAS A VERY SMALL HOLE AND IS ATTATHCED SO TO DRAW CRANK CASE GASSES INTO THE MANIFOLD ON HIGH VACUUM, SUCH AS OVER RUN.
THE EFFECT IS THAT ON OVER RUN WHILST APPROACHING A JUNCTION NO GASSES CAN BE DRAWN DIRECTLY INTO THE ENGINE, THE ONLY PATH IS THROUGH THE LARGE BREATHER HOSE AND THROUGH THE IDLE VALVE AROUND THE CLOSED THROTTLE, THIS SOON FOULS THE VALVE WITH STICKY CRANK CASE DEPOSITS AND OIL CAUSING IT NOT TO FUNCTION CORRECTLY, ALSO THE GASSES CAN AFFECT THE AIR MASS METER WICH MEASURES AIR FLOW BY THE COOLING EFFECT OF THE AIR OVER ITS HEATED SURFACE, SINCE THE GASSES ARE WARM A LARGE QUANTITY OF GASSES CAN CAUSE THE AIR MASS METER TO REGISTER A TROUBLE CODE "AIR MASS MERER VOLTS LOW" ADDING TO YOUR PROBLEMS.
REMEDY: 1)CLEAN THE AIR MASS METER WITH A QUICK SQUIRT OF BRAKE SPRAY OR SIMMILAR.
2)UNBLOCK THE SMALL BREATHE FITTING "DO NOT DRILL IT OUT" ALSO MAKE SURE THE THROTTLE VALVVE PLATE IS CLEAN
3)REPLACE THE IDLE VALVE, THEY ARE ABOUT Ł110:00 + VAT, DONT BOTHER TO CLEAN IT THERE IS A DAMPING CHAMBER INSIDE WHICH HOLD SOME OIL AND YOU CAN NEVER GET IT ALL OUT.
4)FIT VAUXHALL PART NO 9193502 "OIL TRAP" TO THE BREATHER PIPE AT THE FRONT OF THE ENGINE, YOU WILL NEED TO CUT THE BENT RUBBER HOSE BETWEEN THE CAM COVER AND THE METAL PIPE FIT THE TRAP WITH THE WHITE DOT FACING UP SECURE WITH HOSE CLIPS.
5) HAVE YOUR IDLE SPEED ADJUTED TO 864 RPM BY YOUR DEALER, THEY USE TECH 1 AND THE ADJUSTMENT IS TO THE ECU "NEVER ADJUST THE THROTTLE STOP"
I HAVE SEEN ALLSORTS,THROTTLE PLATES WITH HOLES DRILLED IN THEM OR TPS SENSORS BUTCHERD TO CORRECT THE IDLE VOLTS ARTER THE STOP HAS BEEN WOUND IN ETC ETC.
THERE IS ONLY ONE WAY TO DO IT SO DO IT PROPERLY!
from GROM
Ok i've just looked under my engine, i admit i'm no expert but this is what I see.
They have cut the big pipe that goes from the top of the engine, to the very big air pipe (behind the air mass meter).
After they have cut it they have have put a platic junction box (it says ford on it!) inbetween the cut pipes.
They then run a small new pipe (think it's a vacume pipe) from this to a sensor that is attached to the big pipe at the front of the engine. It's the one that has a open coupling on it.
I'm getting some camera film developed, and if you want i will take a photo and post in on here. Click here for the picture
Also my car was there for an MOT and they replaced some bearings in the rocker box (for free). Must be another vauxhall design problem.
Jason
I seem to have found a cure without resorting to additional plumbing - time will tell...
2.Air-idle valve - remove it from the side face of the throttle body - careful not to damage the gasket.The valve separates into 2 halves (cross-head screws)- don't loose the small rubber o-ring which seals the join. On the motor half there is a small spring loaded piston retained by a fixed brass bush - if you gently push this in and out with a stout wire whilst spraying with ether-based carb cleaner, it is possible to wash out the motor body to prevent sticking. Repeat with WD40 to lubricate. The valve half can be cleaned simularly by spraying whilst working the plunger in and out against the spring. I used grease on the gasket when refitting.
3. Small-bore emission hose from cam-cover to manifold stub - I found that both the hose itself and the manifold stub were blocked solid. I replaced the hose - use worm-drive clips in place of the spring type to make sure of a complete seal at both ends.
4.Manifold stub - the bore is about the same as coat-hanger wire and must be completely clear - but don't enlarge it. I sharpened a coat-hanger wire bent at 90 degrees to gain access - the bent bit needs to be about 30mm long to reach right through the bore. Have a good poke from outside and inside the throttle barrel to remove all traces of deposit. Careful not to drop it down the barrel. Access to refit the hose to the stub is tight - it's easier if you temporarily unbolt the throttle cable bracket and move it all to one side.
From Howard
OTHER VECTRA PROBLEMS.
There's the cambelt pully problem which doesn't need much else saying.
The handbrake cable being too thin.
The seatbelt mounings problem ?
The steering modification. If there is play in the steering there is a
modification to the steering universal coupling.
(fitting an older design I think)
Il prblema e' che questo tipo di debimetro e' a "filo caldo", cioe' e' caratterizzato da un filo sottilissimo che viene riscaldato e che e in grado di fornire un segnale proporzionale alla massa d'aria in ingresso al motore, percio' e' un apparecchio molto delicato, addirittura mi hanno detto che quando il filo e' caldo, basta un piccolo urto per romperlo ..., di conseguenza e' bene accertarsi delle buone condizioni del ricambio, anche perche' tutti quelli che ho trovato sino ad ora erano decisamente malridotti ...
Questo problema non sussite con i debimetri di nuova generazione, che invece utilizzano un film sottile al posto del filo caldo.
Per chi ha problemi al minimo dei motori ecotec, allego questo file reperito su un sito inglese in cui si dice che la Opel ha emanato una circolare interna nel novembre del 1999 in cui spiegava come risolvere i problemi di minimo dei sudetti motori .... correte dal vostro meccanico e chiedete conferma !
PROBLEMS WITH THE 2.0 XEV & VECTRA
Usful messages previously on this messageboard :-
CAMSHAFT SENSOR MODIFICATION
ECU error Code 92 is a cam shaft sensor failure.
Eventually they admitted there is a small mod to the sensor itself. The mounting hole in the sensor is enlarged to allow it to sit closer to the switch lobes on the cam.
Problem solved.
IDLE VALVE MODIFICATION
I cleaned the butterfly in the throttle body which made a little difference, but to cure the problem completely there is quite a bit of work to be done and it will cost approx Ł230 from a Vauhall dealer.
The work involves replacing the idle sensor valve with a new updated version which has an ‘X’ by the part number (Ł110 +VAT), and then enlarging a hole to 9mm somewhere around the throttle position sensor, and finally calibrating one of the sensors to 0.?? Volts.
mikjc@cwcom.net
FLAME TRAP (IDLE PROBLEMS)
Car featured S'98 2.0 SRi
Engine idling problems been cutting out when idling or after engine braking and idling high, sometimes 2000-3000 rpm !!!! They have now fitted a flame trap in the breather hose from the rocker cover to the throttle body housing. Vauxhall sent out technical info to dealers regarding a the Flame Trap (NOV '99). So, if your Vectra Ecotec 2.0 engine has been playing up when idling, get off to your local Vauxhall dealer and ask them to fit a flame trap and then run the diagnostics to setup the base idle etc.
from robert.redden@virgin.net
NO DOBOUT MOST OF YOU WITH ECOTEC CAVERLIER, CALIBRA,ASTRA OR VECTRA HAVE SUFFERED STALLING WHEN APPROACHING JUNCTIONS OR ROUNDABOUTS,MAYBE HAVING STOPPED AT A JUNCTION THE IDLE IS ERRATIC BEFORE THE ENGINE CUTS OUT OR THE IDLE WONT COME DOWN.
NOT OT WORRY VAUXHALL HAVE A FIX!
THE PROBLEM IS BAISICLY TWO FOLD FIRSTLY THE SMALL CRANK CASE BREATHER (SMALL HOSE FROM CAM COVER TO THROTTLE/INLET MANIFOLD)GETS BLOCKED AT THE BRASS FITTING IN THE MANIFOLD,THE FITTING HAS A VERY SMALL HOLE AND IS ATTATHCED SO TO DRAW CRANK CASE GASSES INTO THE MANIFOLD ON HIGH VACUUM, SUCH AS OVER RUN.
THE EFFECT IS THAT ON OVER RUN WHILST APPROACHING A JUNCTION NO GASSES CAN BE DRAWN DIRECTLY INTO THE ENGINE, THE ONLY PATH IS THROUGH THE LARGE BREATHER HOSE AND THROUGH THE IDLE VALVE AROUND THE CLOSED THROTTLE, THIS SOON FOULS THE VALVE WITH STICKY CRANK CASE DEPOSITS AND OIL CAUSING IT NOT TO FUNCTION CORRECTLY, ALSO THE GASSES CAN AFFECT THE AIR MASS METER WICH MEASURES AIR FLOW BY THE COOLING EFFECT OF THE AIR OVER ITS HEATED SURFACE, SINCE THE GASSES ARE WARM A LARGE QUANTITY OF GASSES CAN CAUSE THE AIR MASS METER TO REGISTER A TROUBLE CODE "AIR MASS MERER VOLTS LOW" ADDING TO YOUR PROBLEMS.
REMEDY: 1)CLEAN THE AIR MASS METER WITH A QUICK SQUIRT OF BRAKE SPRAY OR SIMMILAR.
2)UNBLOCK THE SMALL BREATHE FITTING "DO NOT DRILL IT OUT" ALSO MAKE SURE THE THROTTLE VALVVE PLATE IS CLEAN
3)REPLACE THE IDLE VALVE, THEY ARE ABOUT Ł110:00 + VAT, DONT BOTHER TO CLEAN IT THERE IS A DAMPING CHAMBER INSIDE WHICH HOLD SOME OIL AND YOU CAN NEVER GET IT ALL OUT.
4)FIT VAUXHALL PART NO 9193502 "OIL TRAP" TO THE BREATHER PIPE AT THE FRONT OF THE ENGINE, YOU WILL NEED TO CUT THE BENT RUBBER HOSE BETWEEN THE CAM COVER AND THE METAL PIPE FIT THE TRAP WITH THE WHITE DOT FACING UP SECURE WITH HOSE CLIPS.
5) HAVE YOUR IDLE SPEED ADJUTED TO 864 RPM BY YOUR DEALER, THEY USE TECH 1 AND THE ADJUSTMENT IS TO THE ECU "NEVER ADJUST THE THROTTLE STOP"
I HAVE SEEN ALLSORTS,THROTTLE PLATES WITH HOLES DRILLED IN THEM OR TPS SENSORS BUTCHERD TO CORRECT THE IDLE VOLTS ARTER THE STOP HAS BEEN WOUND IN ETC ETC.
THERE IS ONLY ONE WAY TO DO IT SO DO IT PROPERLY!
from GROM
Ok i've just looked under my engine, i admit i'm no expert but this is what I see.
They have cut the big pipe that goes from the top of the engine, to the very big air pipe (behind the air mass meter).
After they have cut it they have have put a platic junction box (it says ford on it!) inbetween the cut pipes.
They then run a small new pipe (think it's a vacume pipe) from this to a sensor that is attached to the big pipe at the front of the engine. It's the one that has a open coupling on it.
I'm getting some camera film developed, and if you want i will take a photo and post in on here. Click here for the picture
Also my car was there for an MOT and they replaced some bearings in the rocker box (for free). Must be another vauxhall design problem.
Jason
I seem to have found a cure without resorting to additional plumbing - time will tell...
2.Air-idle valve - remove it from the side face of the throttle body - careful not to damage the gasket.The valve separates into 2 halves (cross-head screws)- don't loose the small rubber o-ring which seals the join. On the motor half there is a small spring loaded piston retained by a fixed brass bush - if you gently push this in and out with a stout wire whilst spraying with ether-based carb cleaner, it is possible to wash out the motor body to prevent sticking. Repeat with WD40 to lubricate. The valve half can be cleaned simularly by spraying whilst working the plunger in and out against the spring. I used grease on the gasket when refitting.
3. Small-bore emission hose from cam-cover to manifold stub - I found that both the hose itself and the manifold stub were blocked solid. I replaced the hose - use worm-drive clips in place of the spring type to make sure of a complete seal at both ends.
4.Manifold stub - the bore is about the same as coat-hanger wire and must be completely clear - but don't enlarge it. I sharpened a coat-hanger wire bent at 90 degrees to gain access - the bent bit needs to be about 30mm long to reach right through the bore. Have a good poke from outside and inside the throttle barrel to remove all traces of deposit. Careful not to drop it down the barrel. Access to refit the hose to the stub is tight - it's easier if you temporarily unbolt the throttle cable bracket and move it all to one side.
From Howard
OTHER VECTRA PROBLEMS.
There's the cambelt pully problem which doesn't need much else saying.
The handbrake cable being too thin.
The seatbelt mounings problem ?
The steering modification. If there is play in the steering there is a
modification to the steering universal coupling.
(fitting an older design I think)
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