Opel Vectra C 2004 1.8 122HP - Cold Engine Misfire and Unresponsive Gas Pedal Issues

Hello. I have an Opel Vectra C engine 1.8 122KM from 2004. I have been struggling with the problem for a year, namely that the cold engine when the car is after a night or is standing for about a few hours after starting the engine can strangle it automatically and the engine goes out. When driving about 500m, it can jerk it and it does not react to the gas pedal. Sometimes, not always when something like this happens, the chack pops up, after peaking the same error misfiring on the 1st or 1st and 3rd cylinder. Today, when there were frosts of -26C, I had a problem with firing up, what the engine started, it immediately choked it and it went out and the misfire error popped up. After several long continuous firing, after about 10 minutes it started to walk and did not go out. I replaced the candles and the coil. Nothing helped. What could it be? I will add that the car is on gas. The dampers were also replaced. The coil is new, original and even transferred from the second car. Same thing unchanged.

Everything can be.
Chinese coil.
Burned valves.
Gaskets at the manifold or under the head.

This problem is quite known in this model.
You can start with the electrics, treat the plugs / connectors, ECU, injectors, etc. with a suitable spray, it is only PLN 10 and then you will add one zero to the price list and then another . Happy New Year.

You replaced the coil and candles, and did you remember about high-voltage cables? I had a similar problem with a lanos with an oploskim engine, the cables were to blame, after replacing everything returned to normal, fire it on a cold one in complete darkness and look at the wires for sparks.

Moderated By CameR:

jack200 wrote:

and did you remember about high voltage cables?

... have you ever seen an engine in a newer Opel?
Reg. 3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.

Most Opel cars have not had high voltage cables since 1998. The coil lies directly on the engine and touches the candles with the so-called tits.

Poorly adjusted LPG can also be a problem, but there should be errors related to the mixture.
It is worth checking the pressure on the pistons and driving a bit on the PB itself with the valve on the cylinder turned off.

And here, by any chance, the valve clearances are not adjusted?

As for the valve clearance, I do not know. Regarding gas, it may have something to do with how it happens on a cold engine, i.e. when the car runs on gas.

The tarnished contacts of the LPG control unit are enough, the Pb injection bypass flows through it and there will also be a misfire. Added to this is the fact that, after all, someone has already cut these bundles to make gas bypass.
Maybe at the beginning it would be appropriate to visit the gazownik ??

I was at 2 gas workers and they found no irregularities. It all looks more like an impression from a sphere.

You need to short the Pb injectors and stop reading coffee grounds, the LPG ECU may be damaged and no reading will help.

Hello, I fought such a vectra (Z 18 XE) last week, except that apart from falling out
ignition, there was also a lambda probe error, it turned out that the gas smashed the map in the controller
The driver, the regenerated car, flashes.

oktawian89 wrote:

And here, by any chance, the valve clearances are not adjusted?

This is what regulates itself, but it is not easy because of the height of the glasses.
Cover up and check to see if any is unsupported.

moto-kord wrote:

Hello, I fought such a vectra (Z 18 XE) last week, except that apart from falling out
ignition, there was also a lambda probe error, it turned out that the gas smashed the map in the controller
The driver, the regenerated car, flashes.

Say what you mean by driver regenerated?

I will add that I dealt with it a long time ago. It turned out that I found a gas nozzle and it was enough to replace the temperature sensor in the gas installation. Other bunglers came up with all sorts of theories from outer space.

So you did not interfere with the engine computer?