Petrol engines - maintenance and common faults spark plugs, lambda, catalytic converter, injectors
Spark plugs, lambda sensor, catalytic converter, direct injection - practical advice for petrol car drivers from the Auto Gas Gaga workshop in Banja Luka.
What is happening under a petrol hood
Petrol engines are generally simpler to maintain than diesels, but they have their quirks. From spark plugs and lambda sensors to modern direct-injection systems (TSI, TFSI, GDI), here we collect advice that helps you understand what is happening under the hood of your petrol car and how to look after it properly.
Petrol Fuel Pump: Wear Symptoms and When It's Time to Replace
A petrol fuel pump dies gradually. Here are the symptoms, causes, and signs it's time for replacement before it leaves you stranded.
Read guide →Petrol engine maintenance that extends its lifespan
How to keep a petrol engine running past 300,000 km. What actually wears out, what kills engines early, and what you need to watch over the years.
Read guide →Ignition coils on petrol engines: failure symptoms and when to replace
Rough idle, power loss, jerking and a check engine light. Here is how to spot a dying ignition coil on a petrol engine and when to replace it.
Read guide →Direct injection engines (TSI, TFSI, GDI) - biggest challenges and how to maintain them
Driving a TSI, TFSI or GDI engine? Here is what direct injection asks of you to last, from carbon on intake valves to oil and the turbo.
Read guide →Petrol Fuel Filter, When to Replace and Symptoms of Clogging
Why a petrol fuel filter clogs up, what symptoms to watch for, and how it protects injectors and the pump. Honest advice from a Banja Luka workshop.
Read guide →Catalytic converter: symptoms of clogging, replacement, and when it's really done
Car losing power, smelling like sulfur or failing emissions? Here's how a catalytic converter dies, how to test it, and when replacement really makes sense.
Read guide →Oxygen Sensor (Lambda Sensor): What It Does, Symptoms of Failure, and Why You Can't Ignore It
The oxygen sensor sits quietly in your exhaust and most drivers never think about it, but when it fails your fuel use jumps and the catalytic converter dies.
Read guide →MAF sensor (mass air flow): failure symptoms, cleaning, and replacement
Rough idle, hesitation, higher fuel use, check engine light? A dirty MAF sensor is often the culprit. Symptoms, cleaning steps, and when to replace.
Read guide →Octane rating and fuel quality: what it really means for your petrol engine
What octane rating actually measures, when 98 is worth the money, when 95 is plenty, and why fuel cleanliness often matters more than the number on the pump.
Read guide →Turbochargers on petrol engines (TSI, TFSI) - how to extend their life
Petrol turbos run hotter than diesel turbos and wear differently. Here is how to make TSI, TFSI and other petrol turbo engines last.
Read guide →Variable valve timing (VVT, VANOS, VTEC) common issues and failure symptoms
What variable valve timing actually does, why VVT, VANOS and VTEC systems fail, and how to spot the warning signs before the bill gets ugly.
Read guide →Got a problem
with your vehicle?
For an inspection, service or to discuss your vehicle, call us or send a message. If you're not sure what the fault is, describe the symptoms and vehicle model.
Njegoševa 44
Banja Luka, Republika Srpska
Bosnia and Herzegovina