Opel Meriva 1.6 16V 2007: Addressing Single Cylinder Misfire & Check Light Issues

Hello. I am struggling with the problem of misfiring on the second cylinder in the engine as in the topic. Factory gas installation Opel Landi Renzo. Symptoms: on gas at idle speed "limps", on high speed it goes, on gasoline and on gas at low speed, there is no accumulation while driving, of course, the check also lights up. After deleting the error on petrol, a probe error pops up, and on gas, the ignition of the 2nd cylinder is also misfired. Gas injector replaced (unnecessary), no change. Sealed intake manifold because it gently sucked the left air, no change. Candles replaced, no changes. Replaced the pneumothorax diaphragm because it was cracked, no changes. Compression on each after 17, gasoline injections tight. The coil has not been replaced yet because the cost of the dispute has accumulated, especially since it is not certain that it is a coil. Anyway, someone mentioned me recently, because the date from 2016, some kind of trip. Is it possible to check the coil reliably? Or is it something else? I would like to add that after squeezing the gas supply hose to the 2nd cylinder, the change in engine operation is practically imperceptible.

The coils can be replaced. LPG injections in places too. Works OK at PB?

The original coil would be PLN 300, I'm just afraid that it may not be it again. Swap injections, swapped plugs, even test swapped gas supply hoses, i.e. 3rd injection connected to 2 cyl. and 2 under 3 cyl. Still misfire on cylinder 2. The petrol runs evenly, although I have the impression that up to 2500-2700 rpm. him mussels.

Not too high compression pressure?
What is this probe error?
Swapping LPG hoses between cylinders would suggest a problem with the coil or the mixture on the second cylinder. There could be a problem with a tacky coil replacement.
You wrote that you unfastened the LPG hose on the 2nd cylinder and no reaction - no reaction to LPG or PB?

What is the vacuum at idle speed?

Komprecha as I wrote, I was not wrong. Probe error behind the catalyst, heater or heater circuit, I don't remember anymore. But by resetting the error while driving and driving continuously with revolutions above 2500, the error does not occur. I unfastened the hose as well as squeezed it, but only on lpg. The injector gives gas, the hose sucks in the same way as the others. Virtually everything has been checked except the coil, I have nothing to replace at the moment. Tomorrow I will check the spark, maybe it will be visible. I do not want to buy blind again because I have already spent PLN 600 unnecessarily.

I did not ask about compression, only about the vacuum in the intake manifold at idle speed. The B1S2 probe error has no effect on engine operation. (measure the heater resistance, if wrong, replace the probe).

After the vacuum value, we will find out how the engine works at idle

The vacuum value can rule out several faults that give the same symptoms.

The probe error is P0136. As for the coil, it can be excluded because it was replaced and nothing has changed. I will measure the vacuum and give it tomorrow.

Vacuum 0.35bar.

Close to correct. That would rule out fake air, an egr tilted, and fired valves. If it's z16xep, do such an experiment, download the EGR plug and wait until it catches the error, then see if it will be better with the EGR error.

The engine is 16xep. Earlier, I entered a different error code by mistake, mixed it with another car. It's not P0136 but P0141. I unplugged the plug from the EGR and caught the P1405 error. The only change was that sometimes there were single fluctuations in turnover.
What is the chance it's a gas controller? Nobody contacted him because he is "blocked" by the Opel service in which he was set up.

I will come back to the topic because the problem is still not solved. I bought an identical Landirenzo driver, the one I have is dedicated to the Z16XEP meriva, the new one can be said to be general. Do I need to replace anything else when replacing the driver? It does not start at all on a new car.

How efficient and for this engine it must burn.

You have to connect and set it to the bank.
Maybe the injection beam should be checked? The executioner's patience because he smells the stench of the super factory gas.
After replacing it, it should run on pb if the ecu lpg is operational.
And how with the flaps in the intake, because it probably already has?