2004 Vauxhall Signum signum problems
Year: 2004
Variant: 2.2petrol direct
Categories:
Running Rough, Starting & Power Loss
The car doesn't idle correctly and will not go over 3000rpm when put foot on accelerator.cuts out when trying to drive, had a tech 2 diagnostics and shows, P1500 (changed throttle body), P1550 (changed peddle sensor complete), P1191
Had ECU reconditioned which came back saying it was overloaded with unearthing fault. Have to disconnect battery as it drains flat if left on the car.
If anyone has anything that we could try I we ought known d be very grateful.
Had ECU reconditioned which came back saying it was overloaded with unearthing fault. Have to disconnect battery as it drains flat if left on the car.
If anyone has anything that we could try I we ought known d be very grateful.
Posted: Mar 14, 2013 (11 years ago)
Get your battery load tested in case of weak cells .If o.k and still going flat , check for a parasitic drain .Also check alternator output . This refers to code 1151 ,
(2005.06) - Signum 2003 To 2004 - Engine Type: Z22YH - High Pressure Pump, Fuel Pressure Regulator - Defective (P1191 set)
Signum/Vectra 2003 To 2005 - Engine Type: Z22YH
High Pressure Pump, Fuel Pressure Regulator - Defective (P1191 set)
The customer complains that the MIL is on. P1191 us set in the ECU.
1. High pressure pump defective, vehicle not driveable
2. Fuel pressure regulator defective, vehicle runs in emergency operating mode
This is caused by a defective high pressure pump or fuel pressure regulator valve. In case of customer complaint proceed as follows to verify the defective part:
1. Check fuel feed pressure at high-pressure pump with manometer (engine running)
Is primary feed pressure less than 3, 4 bar?
Yes: Low pressure fuel feed failure -> check fuse, relay, intank module.
2. Measure fuel pressure in the high pressure rail at idle by using Tech2 Datalist.
Is fuel pressure in the high pressure rail less than 600kPa?
Yes: High pressure pump defect, replace.
3. Pull off connector (two-core) of the fuel pressure regulator.
Measure the voltage of the fuel pressure sensor at 3000RPM (standing vehicle) with Tech2.
Is Voltage greater than 1, 2V?
Yes: Fuel pressure regulator defect, replace.
4. Defect is not clearly allocable to one component. Proceed according to TIS 2000 service instruction.
TIS Reference Number: E0001614
(2005.06) - Signum 2003 To 2004 - Engine Type: Z22YH - High Pressure Pump, Fuel Pressure Regulator - Defective (P1191 set)
Signum/Vectra 2003 To 2005 - Engine Type: Z22YH
High Pressure Pump, Fuel Pressure Regulator - Defective (P1191 set)
The customer complains that the MIL is on. P1191 us set in the ECU.
1. High pressure pump defective, vehicle not driveable
2. Fuel pressure regulator defective, vehicle runs in emergency operating mode
This is caused by a defective high pressure pump or fuel pressure regulator valve. In case of customer complaint proceed as follows to verify the defective part:
1. Check fuel feed pressure at high-pressure pump with manometer (engine running)
Is primary feed pressure less than 3, 4 bar?
Yes: Low pressure fuel feed failure -> check fuse, relay, intank module.
2. Measure fuel pressure in the high pressure rail at idle by using Tech2 Datalist.
Is fuel pressure in the high pressure rail less than 600kPa?
Yes: High pressure pump defect, replace.
3. Pull off connector (two-core) of the fuel pressure regulator.
Measure the voltage of the fuel pressure sensor at 3000RPM (standing vehicle) with Tech2.
Is Voltage greater than 1, 2V?
Yes: Fuel pressure regulator defect, replace.
4. Defect is not clearly allocable to one component. Proceed according to TIS 2000 service instruction.
TIS Reference Number: E0001614
Posted Mar 14, 2013 (11 years ago)
Check this old link ,
http://www.dailymail.co.uk/motoring/article-1119262/Vauxhall-engine-fault-leaves-30-000-cars-risk-losing-power-suddenly.html
http://www.dailymail.co.uk/motoring/article-1119262/Vauxhall-engine-fault-leaves-30-000-cars-risk-losing-power-suddenly.html
Posted Mar 14, 2013 (11 years ago)
I have a similar problem: the light on the dashboard showing a light bulb with an exclamation mark is on. I already changed the battery and the same is happening again. It seems that this is something related to the sensors/solenoid on my transmission since as soon as the temperature raises to 90C, it skips gears and does not shift smoothly.
Posted May 12, 2013 (10 years ago)
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