I have a problem with hard starts and bad emmissions which I think are caused by wet spark plugs. They were changed few months ago because the car couldn’t start, all of them were black (some of them had 1 some 4 “legs”, God knows who put them). Now few months after, again, they are all blackish but…

You gave us ZERO information about what you are working on… we should not have to search your past post to find it… sorry but we see a lot of post everyday… lol Year Make Model and ENGINE size (ci or L) Also did you put the correct OEM spark plugs in it… If the CEL is coming on and going off agai…

First of all thanks for the reply! The car is Opel/Vauxhall Tigra 1.6 16v (106hp). These “new” spark plugs, changed few months ago, are OEM. Ones before them were put in “pairs” two with one ground electrode and two with four ground electrodes. These new ones are with only one. So let me begin… I bo…

Suggest to post your car’s model year also. Sorry you are having this difficulty, frustrating. My guess, you have a leak in the exhaust system. Allows outside air to hit an o2 sensor, making the computer think more gasoline needs to be injected than the engine actually needs. Wet spark plugs and …

@George_San_Jose1 actually my car doesn’t have an o2 sensor, or atleast the jack is disconnected…

[image] davesmopar: Year Make Model and ENGINE size ( [image] MilanS02: The car is Opel/Vauxhall Tigra 1.6 16v (106hp) [image] George_San_Jose1: Suggest to post your car’s model year also. [image] MilanS02: @George_San_Jose1 actually my car doesn’t have an o2 sensor, or atle…

[image] MilanS02: my car doesn’t have an o2 sensor, or atleast the jack is disconnected… Your 2000 model year vehicle uses OBD II technology, and has at least two o2 sensors, before and after the cat. If your o2 sensors are missing or disconnected, that’s the most likely cause of your fuel/ai…

Thank you for your time and your responses, you did help me a lot understanding what could be wrong with my car, for sure more than my mechanic… I thanked you once but seriously i’m so grateful for your help!!! For these few days I drove my tigra a bit and it does drive much better than before, has …

All done, about two months ago, but the oil is a bit over the max line but not over 10% of the capacity, I read somewhere that, that is the borderline for no problems, correct me if i’m wrong

Wet spark plugs

Maintenance/Repairs

George_San_Jose1 July 15, 2023, 10:43pm 10

Check the crankcase oil level on the dipstick. If low, top off to “full” mark. If oil is very dark or black, replace engine oil and filter with fresh stuff.

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Wet spark plugs

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