painner
Member
Registered: 21st Aug 10
Location: winchester uk
User status: Offline
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Hello I am hoping someone can help me. I have a corsa b sport 14i 16v s reg i think it’s a DOHC X14 XE engine. The problem is its over revving nearly all the time at tick over, its about 1000 to 1100 rpm and when I am driving and come to a junction its revving at about 2000rpm . Sometimes I can give the throttle a quick jab and it knocks the revs back down .which seems like a sticky cable or something but it’s also is very sluggish when I accelerates and takes its time to build up speed in lower gears. also When I took it for the MOT the emissions were showing very high but they kept on trying and got it down and it finally past. As they had fitted a new cat a few weeks before and knew the emissions were good at that time that’s why kept on trying for me .i thought I could put up with this fault until money was bit more flowing then i could put it into a garage but that’s still not the case so wonder if I can get advice here and do it myself
Many thanks for your time
painner
[Edited on 28-07-2012 by painner]
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XE Col
Premium Member
Registered: 23rd May 10
Location: Rochdale, AKA:Boissy07
User status: Offline
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sounds like idle control valve
Engine management light on?
if not does it work? ie. go on and off when you put ignition on?
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painner
Member
Registered: 21st Aug 10
Location: winchester uk
User status: Offline
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Thanks for reply yes the engine light is on and been since i got it. As there is a problem with the cam belt censor, long story but we can’t seem to get that light to go out even after new censor so it’s not helping. I can’t remember how to check the codes as don’t want to pay another 30 pounds on checking the codes as I have paid that 4 times in the past and still have the light on grrr
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corsajay88
Member
Registered: 22nd Aug 11
Location: Upton, Cheshire
User status: Offline
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What codes come up when you got them read?
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Gaz
Member
Registered: 24th Aug 03
Location: Widnes, Cheshire
User status: Offline
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http://www.topbuzz.co.uk/info/fault_codes/fault_codes.htm
The paperclip test 
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painner
Member
Registered: 21st Aug 10
Location: winchester uk
User status: Offline
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thanks done the paper clip test and got these codes
1405 x3
1503 x3
0340 x3
then it seems to stay on 10 flashes then 5
(05) hope this helps
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Gaz
Member
Registered: 24th Aug 03
Location: Widnes, Cheshire
User status: Offline
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GM-Multec Code Chart:
Code: Item:
Fault:
12 Initiation of diagnosis. n/a
13 Oxygen sensor No change in voltage/open circuit.
14 Coolant Temperature Sensor (CTS) Low voltage
15 Coolant Temperature Sensor (CTS) High voltage
16 Knock signal circuit n/a
18 Knock control processor n/a
19 Crank Angle Sensor (CAS) Incorrect RPM signal
21 Throttle Potentiometer Sensor (TPS) High voltage
22 Throttle Potentiometer Sensor (TPS) Low voltage
24 Vehicle Speed Sensor (VSS) No speed signal or low voltage
25 Injector valve Low voltage
28 Fuel pump relay contacts Contact problem
29 Fuel pump relay Low voltage
32 Fuel pump relay High voltage
33 Manifold Absolute Pressure (MAP) sensor High voltage
34 Manifold Absolute Pressure (MAP) sensor Low voltage
35 Idle stepper motor Poor or no idle speed control
41 Amplifier control signal, cylinders 2 and 3 (Direct Ignition System (DIS)) High voltage
42 Amplifier control signal, cylinders 1 and 4 (Direct Ignition System (DIS)) High voltage
43 Primary ignition (distributor systems) High voltage
44 Oxygen sensor Air/Fuel mixture too lean (weak)
45 Oxygen sensor Air/Fuel mixture too rich
46 Amplifier (Direct Ignition System (DIS)) control signal (A+B) High voltage
47 Linear exhaust gas re-circulation (EGR) position n/a
49 Battery supply to Engine Control Unit (ECU) High voltage (greater than 17 volts)
51 Engine Control Unit (ECU) Defective ECU (disconnect and reconnect (ECU), then recheck for fault codes). Memory failure
52 Secondary air pump relay Low voltage
53 Secondary air pump relay High voltage
54 Idle Carbon Monoxide (CO) potentiometer n/a
55 Engine Control Unit (ECU) fault Renew Engine Control Unit (ECU)
56 Air control soleniod Low voltage
57 Air control soleniod High voltage
61 Fuel tank vent valve (FTVV) Low voltage
62 Fuel tank vent valve (FTVV) High voltage
63 Amplifier control signal, cylinders 2 and 3 (Direct Ignition System (DIS)) Low voltage
64 Amplifier control signal, cylinders 1 and 4 (Direct Ignition System (DIS)) Low voltage
65 Primary ignition (distributor systems) Low voltage
66 Throttle position sensor (TPS) Hose broken
67 Air Flow Sensor (AFS), hot wire meter (air mass meter) Signal is outside normal operation parameters (out of range)
68 Air Flow Sensor (AFS), hot wire meter (air mass meter) Faulty air mass meter signal, incorrect frequency
69 Air Temperature Sensor (ATS) (MPi only) Low voltage
71 Air Temperature Sensor (ATS) (MPi only) High voltage
72 Amplifier (Direct Ignition System (DIS)) control signal (A+B) Lead interruption, open circuit
75 Torque control (Automatic Transmission (AT) only) Low voltage
76 Torque control (Automatic Transmission (AT) only) Continuous
81 Injector valve High voltage
83 Immobiliser No or wrong code
84 Immobiliser No signal
85 Immobiliser Wrong signal
87 Air conditioning cut-off relay Low voltage
88 Air conditioning cut-off relay High voltage
92 Camshaft sensor Faulty hall effect sensor or circuit
93 Quad drive module (in ECU) n/a
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painner
Member
Registered: 21st Aug 10
Location: winchester uk
User status: Offline
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thanks for list but looks like mine is the other code list as fare as I can research it's the simtec 56.5 ecu codes . I have taken the battery out for an hour to try and reset the ecu and will recheck the codes . the 1503 code says immobiliser control unit and that seems fine as starts no problem but did drop the chip out of the key last month and tried to start it .so will get back to give the new list many thanks for your time
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painner
Member
Registered: 21st Aug 10
Location: winchester uk
User status: Offline
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took battery off for hour then reattached still has these faults
0115 intake coolant temperature sensor
0340 camshaft sensor
1404 exhaust gas re-circulation valve (EGR)
1503 immobiliser control unit
would the 1405 fault be the problem but now worried about how to solve the 1503 fault lol
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