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[pacman13]

Hi all, can anyone help with the following codes i have thanks to the paperclip test, they are  33-46-57-61-91. if i have read them right. but couldn't fine codes for 33 & 46. On wednesday the eml was coming on and off and now stays on and now the oil light is on constantly, oil level is ok. The car is a 2.0l 16v 94 estate. many thanks Paul.

[Entwood]

Hi all, can anyone help with the following codes i have thanks to the paperclip test, they are  33-46-57-61-91. if i have read them right. but couldn't fine codes for 33 & 46. On wednesday the eml was coming on and off and now stays on and now the oil light is on constantly, oil level is ok. The car is a 2.0l 16v 94 estate. many thanks Paul.

The oil can symbol on the speedo clock ? that is LOW OIL PRESSURE ... do NOT run the engine the risk of fatal damage is extremely high !!!!


P0033 Turbo Charger Bypass Valve Control Circuit

No 46 listed.

P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2)

P0061 HO2S Heater Resistance (Bank 2, Sensor 3)

P0091 Fuel Pressure Regulator 1 Control Circuit Low

2.0 litre 4 pot does not have a "bank 2" AFAIK ....I would strongly suggest you recheck the codes you have got .. without running the engine !!

List of codes ... http://www.obd-codes.com/trouble_codes/

[pacman13]

Thanks for getting back to me but checked the codes 3 times and these are the codes i'm getting.

[pacman13]

Thought the codes were the following:-

33 Not listed
46 not listed
57 Idle air control Voltage low
61 Fuel tank vent valve Voltage low
91 Oxygen sensor heater Voltage high

[Entwood]

Thought the codes were the following:-

33 Not listed
46 not listed
57 Idle air control Voltage low
61 Fuel tank vent valve Voltage low
91 Oxygen sensor heater Voltage high

Depends where you look ... different places give different meanings for some codes !!! which doesn't help much at all !!

Mark's list here ... http://www.omegaowners.com/forum/index.php?topic=90585.0

Differs from the "generic" list here ... http://www.obd-codes.com/trouble_codes

My guess would be that Mark's list is "probably" the more accurate ....

[alank46]

The OP has a 1994 car, ie it is not EOBD, it uses 2 and 3 digit codes not the 4 digit EOBD codes.  Having said that I have lost my reference to the earlier codes so am not able to help further.

[Entwood]

The OP has a 1994 car, ie it is not EOBD, it uses 2 and 3 digit codes not the 4 digit EOBD codes.  Having said that I have lost my reference to the earlier codes so am not able to help further.

It might not be EOBD... but it is OBD .. and as I said .. fault codes vary from site to site ..

Here's a list from yet another.. note the use of the word "probably" ...  which seems to agree with Mark's list (link above)

Simtec 56 Fault code listing

Models from about 1995-1996 on will probably use codes from this list.

13 Oxygen Sensor - open circuit
14 Coolant temperature sensor - voltage low
15 Coolant temperature sensor - voltage high
16 Knock sensor signal circuit
19 Incorrect RPM signal
21 Throttle position sensor - voltage high
22 Throttle position sensor - voltage low
23 Knock signal - out of range
24 No vehicle speed signal
25/26/27/28/29/30 Injector valve 1/2/3/4/5/6 - voltage high (injector(s) short-circuited to battery, or injection signal not present)
37 Check light - voltage low
38 Oxygen sensor circuit - voltage high
39 Oxygen sensor circuit - voltage low
44 Oxygen sensor - lean exhaust
45 Oxygen sensor - rich exhaust
48 Battery - voltage low
49 Battery - voltage high
52 Fuel pump relay - voltage low
53 Fuel pump relay - voltage high
54 Fuel pump relay 0 - voltage high
55 ECU memory fault
56 Idle air control valve - voltage high
57 Idle air control valve - voltage low
61 Fuel tank vent valve - voltage low
62 Fuel tank vent valve - voltage high
69 Intake air temperature
71 as above
73 Mass air flow temperature
74 Mass air flow temperature
75 Torque control - voltage low
76 Torque control - continuous
81/82/83/84/85/86 - Injector valve 1/2/3/4/5/6 - voltage low (injector(s) short  circuit to ground)
87 A/C cut-off relay - voltage low
88 A/C cut-off relay - voltage high
91 Oxygen heating - voltage high
92 Camshaft position sensor - incorrect signal
93 Camshaft position sensor - voltage low
94 Camshaft position sensor - voltage high
95 Hot start valve - voltage low
96 Hot start valve - voltage low
97 Traction control module - incorrect signal
98 Oxygen Sensor heating - voltage low

and yet another ... http://www.gmtuners.com/OBD1_DTC.htm

[pacman13]

Found the following to the codes on this website -http://www.diaaut.home.pl/dtc04_opel.pdf

33-Exhaust gas recircutation (EGR) solenoid - voltage low
46-Secondary air injection (AIR) pump relay -voltage low
57-Idle air control (IAC) valve - voltage high
61-Evaporative emission (EVAP) canister purge valve - voltage low
91-Oxygen sensor heater-voltage High

Does these make sense to anyone.

[tidla]

Your wasting your time with codes at the moment. The oil pressure light  would be priority.

[pacman13]

What do i need to do to sort the oil light out as i cant drive it to a garage, I started the engine up and undone the filler cap to see if oil was circulating but thought i might get splattered in oil but wasn't and the oil light was flickering on and off, so does that mean the oil pressure switch is not at fault as it was registering pressure drop as i had the filler cap off. Don't know much about cars just guessing.

[ffcgary1]

NO OIL PRESSURE DO NOT START ENGINE.
Have you recently had an engine service  and oil change.?
did you have an flushing oil put into the engine.?
If no to the above when was the last service?

[pacman13]

Yes had headgasket done in january along with cambelt and water pump. Changed the oil and filter couple of weeks after. Has been running ok for the last 6 weeks.

[pacman13]

Going to start simple, and change the oil pressure switch once i've bought a deep socket as a spanner wont fit as the lug from the sump is in the way.

[Entwood]

Going to start simple, and change the oil pressure switch once i've bought a deep socket as a spanner wont fit as the lug from the sump is in the way.

Wondering now ....  is it possible for you to borrow an oil pressure gauge ??  Fits in the same hole and would tell you the actual oil pressure ...which would in turn tell you if the engine is FUBAR or the oil pressure switch is actually the fault ??

[pacman13]

well i've already got the switch so will put that on as soon as i can, as for borrowing a pressure gauge no don't think i know anyone with a gauge that will let me.