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[kaisergaragerpt]

HI guys

The car has hard starts to no starts and it is getting worse

The thing is i have a log from dec 2025 where immo active telltale off i don't know what changed..

Code: [Select]

[PROGVER],VAUX-COM 120309a - PC based diagnostic tool
[TIMESTAMP],15/12/2025. 11:19
[WSINFO],Please add your workshop,name in the settings window,,
[MODELINFO],1998 (W),Omega-B,Engine,X 25 XE
[ECUINFO],KW82 protocol initialized.,ECU ID= HH,90492382,0261203588,1267358989,03,,
[MBLOCKSINFORMATION]

[SELINFO],0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
Time,Identifier,Battery Voltage,Immobiliser Signal,Immobiliser,TPS Signal (Throttle Position Sensor),Simulated Idle Position,Simulated Full Load Switch,Mass Air Flow Sensor,Mass Air Flow Sensor,Coolant Temperature,Coolant Temperature,Intake Air Temperature,Intake Air Temperature,Engine Type,Transmission Coding,Park/Neutral Switch,A/C Information Switch (Air Conditioning),A/C Compressor Switch (Air Conditioning),Telltale (Check Light),Fuel Pump Relay,Spark Angle before TDC (Top Dead Centre),Ignition Coil Cyl. 1+4 (Cylinder),Ignition Coil Cyl. 2+5,Ignition Coil Cyl. 3+6 (Cylinder),Knock Signal,Knock Retard,Secondary Air Pump Relay,EGR Valve (Exhaust-Gas Recirculation),EGR Position Feedback (Exhaust Gas Recirculation),Fuel Tank Ventilation Valve,O2 Sensor 1,O2 Sensor 2,O2 Sensor Loop 1,O2 Sensor Loop 2,Air/Fuel Ratio 1,Air/Fuel Ratio 2,O2-Loop 1 Integrator,O2-Loop 2 Integrator,O2-Loop 1 BLM Idle (Block Learn Map),O2-Loop 2 BLM Idle (Block Learn Map),O2-Loop 1 BLM Partial Load (Block Learn Map),O2-Loop 2 BLM Partial Load(Block Learn Map),Hall Sensor,Engine Speed Pulse,Engine Speed,Idle Air Control,IAC Integrator (Idle Air Control),IAC Adaptation Slope (Idle Air Control),IAC Block Learn (Idle Air Control),Desired Idle Air,Actual Value Idle Air,Desired Engine Idle Speed,Injection Pulse,Engine Load Signal,TPS Load Signal (Throttle Position Sensor),Vehicle Speed Pulse,Vehicle Speed,Intake Manifold Valve 1,Intake Manifold Valve 2,Torque Control,A/C Cutoff Relay (Air Conditioning),Diagnostic Request,
sec,,V,,,V,,,V,kg/h,V,°C,V,°C,,,,,,,,°CA,,,,,°CA,,,V,%,mV,mV,,,,,Steps,,Steps,Steps,Steps,Steps,,,RPM,Steps,Steps,Steps,Steps,kg/h,kg/h,RPM,ms,ms,%,,km/h,,,,,,
0.02,0D,14.1,Received,Active,0.57,Active,Inactive,0.71,11,1.01,89,3.76,14,6 Cylinder,Manual Transmission,P - N  0V,Inactive 0V,Inactive 0V,Off 12V,Active 0V,4,Load,Load,Load,Inactive,0,Inactive 12V,Inactive,0.72,0,849,859,Closed,Closed,Rich,Rich,135,133,172,162,128,128,Inactive,Inactive,734,157,128,144,128,10,10,750,2.8,0.9,0,Not Received 12V,0,Inactive 12V,Inactive 12V,Inactive,Inactive 12V,Inactive 5V,

and it has been driving until last week I performed some minor banjo bolt changes and it got worsen.

now live data shows telltale on ( i tested it in "My Naff Code Reader" it turns off)

I erased all trasnponders configed 1 key fob transponder all good it comunicates with ECU but i cannot put the immo inactive. Why?

[Doctor Gollum]

I wouldn't be playing with that tool in that ECU...

It has a nasty habit of bricking things.

[kaisergaragerpt]

what would you use? Im up to anything now

[Doctor Gollum]

Genuine Tech 2 with genuine software.

Trouble is, now you've been poking around in the software, you're going to struggle to get it fixed.

Engine ECU, transponder ring and key from a single car, ideally with the Vin and Car Pass may be your only hope.

That said, you say it got worse after some engine work, which points directly to a wiring harness issue.

Start here

[kaisergaragerpt]

I just measured the pin 3 (or 7) from the immo to ecu 10 (11?) and is good 0.05 ohm

Also just tested the other key transponder that I erased and it blinks so immo is ok


The programed key does not blink, it stays fix and when I turn the key it goes off but the engine still won't start

What a conundrum.

[Doctor Gollum]

In that case, trying to fix it, you've messed up the programming.

The original issue may have been wiring related, now you need to start fresh with the items I listed above.

And let this be a lesson when using opitycom...

[TheBoy]

If you have the genuine O P C O M purchased direct the the Hungarian manufacturer, ask them for support when programming *ANYTHING*.  If you have the Chinese cloned copies of the adapter and software, use it purely for code reading and live data, *NEVER* programming. Ever.


However, if the spanner light isn't flashing then the Engine ECU is given permission to start.  Are the symptoms that it's cranking but not firing?

[kaisergaragerpt]

It fires and almost catch ignition. The pump is working cos it stinks gas. The other day I cranked for like 5 min and I got it running but poorly with bad throttle response.

Is fantomel 1.95 with original chip a secure option?

[TheBoy]

So you need to look at why its not running.

Petrol, air, compression....

[YZ250]

It fires and almost catch ignition. The pump is working cos it stinks gas. The other day I cranked for like 5 min and I got it running but poorly with bad throttle response.
……

I can’t help with the immobiliser issue but reference the poor starting I would have suggested looking for DTC P0335 or Code 19 (crank position sensor) on the X25XE but you say it stinks of fuel, and as far as I recall a faulty CPS doesn’t allow the fuel pump to operate. 

[kaisergaragerpt]

So you need to look at why its not running.

Petrol, air, compression....

I think electronics? Immo active telltale on... All the sensors are working tho

[kaisergaragerpt]

It fires and almost catch ignition. The pump is working cos it stinks gas. The other day I cranked for like 5 min and I got it running but poorly with bad throttle response.
……

I can’t help with the immobiliser issue but reference the poor starting I would have suggested looking for DTC P0335 or Code 19 (crank position sensor) on the X25XE but you say it stinks of fuel, and as far as I recall a faulty CPS doesn’t allow the fuel pump to operate. 

Crank sensor is ok I removed it and cleaned with contact cleaner. It shows revs and no codes.

[TheBoy]

So Spanner light flashing - immobiliser issue. You say its not that

Spanner light on - Engine ECU detected a (non emissions) fault and will have stored a code

Engine light flashing or on - emissions fault, read code

[Osmo]

How about air mass meter? Faulty causes such symptoms.

[Doctor Gollum]

Unplug it. It should run but the light will be on.