Guides
Turbo: sintomi di turbo guasto, cause e costo di riparazione
Un turbo che fischia e un calo improvviso in modalità recovery di solito sono uno di sei guasti. Ecco cosa fa un turbo guasto e quanto costa ripararlo.
26 giugno 202610 min
Topic Cluster/Cluster di argomenti: diagnosi OBD2
Diagnosi OBD2 e codici errore
Guida completa ai codici diagnostici OBD2. Scopri cosa significano P0300, P0171, P0420 e gli altri codici errore, come diagnosticarli, i costi di riparazione e quando è sicuro guidare.
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Guides
DPF Regeneration: What It Is, the Signs, and Can You Drive?
DPF regeneration is your diesel burning soot out of its filter at over 600C. Here are the three types, the signs it is happening, and whether you can keep driving.
25 giugno 20268 min
Guides
Where Is the OBD2 Port? How to Find It Fast in Any Car
The OBD2 port sits under the dash within about 45 cm of the steering wheel in nearly every car built since 2001. Here is where to look, by spot and by make.
24 giugno 20268 min
Guides
Problemi all'albero a camme: sintomi, cause, codici e costo
Minimo irregolare, un battito a freddo o un codice P0010? Quasi sempre l'albero a camme è un'elettrovalvola o un sensore economico, non l'albero usurato.
24 giugno 202610 min
Guides
Bad Ignition Coil Symptoms (and How to Confirm It With OBD2)
A failing ignition coil shows up as a misfire, rough idle, and a flashing engine light. Here are the symptoms, the codes that name the cylinder, and the cost.
21 giugno 20268 min
Guides
FIXD Alternative 2026: No Sensor Lock-In, No Subscription
Looking for a FIXD alternative because of the proprietary sensor or the Premium subscription push? Here are the honest options and who each one suits.
20 giugno 20269 min
Guides
Bobina di accensione: cosa fa, segni di guasto, codici e costi
Una bobina di accensione fa scoccare la scintilla; quando si indebolisce il motore perde colpi. Cosa fa, perché si guasta, i codici e il costo.
19 giugno 202610 min
Guides
Bad Torque Converter Symptoms: Signs, Codes and Repair Cost
Shudder at 30-50 mph, RPM flare without acceleration, and harsh Park-to-Drive shifts point to a failing torque converter. Here are the signs, codes and costs.
18 giugno 202610 min
Guides
Valvola EGR: cosa fa, sintomi, codici e costo
Una valvola EGR guasta dà minimo irregolare, esitazioni e un P0401. Cosa fa la valvola, i sintomi di bloccata aperta o chiusa, e il costo di riparazione.
17 giugno 20269 min
Guides
I Cleared the Fault Code and It Came Back: What It Means
Clearing a fault code does not fix the fault. If the code comes back, it is an active problem, not a reset failure. Read it yourself for 15 euros to know which.
16 giugno 20268 min
Guides
BlueDriver Alternative 2026: Cheaper, Free, and No Lock-In
Looking for a BlueDriver alternative because the bundle costs around 100 euros or you already own an ELM327? Here are the honest options and who each suits.
15 giugno 20268 min
Guides
How to Negotiate a Used Car Price With OBD2 Scan Evidence
Two stored fault codes can be worth several hundred euros off the asking price if you present them right. Here is how to turn a pre-purchase OBD2 scan into a documented discount.
12 giugno 202610 min
Guides
Catalizzatore: sintomi, cause e quanto costa uno guasto
Un catalizzatore guasto dà il codice P0420, sa di uova marce e boccia la revisione. Ecco come leggere sintomi, codici e il costo reale di riparazione.
12 giugno 20269 min
Guides
How to Check a Used Car Before Buying: The Full Checklist
Most used-car checklists cover paint and a test drive but skip the one check sellers fear: a 5-minute OBD2 scan that reads the faults the eye cannot see.
11 giugno 20269 min
Guides
Car Hard to Start But Runs Fine? Causes, Fixes and Cost
Your car cranks several times before it fires, then drives perfectly. Here is what makes a car hard to start, how to find the fault, and what each fix costs.
11 giugno 202611 min
Guides
Will Your Car Pass the Emissions Test? Check Readiness Monitors First
A car can fail its emissions test for incomplete readiness monitors even with nothing wrong. Check them yourself for 15 euros before you book the test.
11 giugno 20268 min
Guides
Which OBD2 Codes Fail Inspection (And Why Clearing Them Fails Too)
Clearing a code before inspection resets the readiness monitors, and stations check those. Here are the OBD2 codes that fail, and why a fresh clear fails anyway.
10 giugno 20269 min
Guides
Recently Cleared Codes: How Readiness Monitors Expose It
A used car that scans clean can still have its codes wiped minutes before you arrived. Readiness monitors are how you catch it. Here is the check.
9 giugno 20269 min
Guides
How to Find Out What Is Wrong With Your Car for 15 Euros
A 15 euro Bluetooth adapter and a free phone app read the exact fault code a shop charges 30 to 100 euros to pull. Here is how to do it yourself in 5 minutes.
8 giugno 20269 min
Guides
OBD2 Red Flags When Buying a High-Mileage Imported Diesel
A 210,000 km imported diesel that looks too clean hides its faults in the OBD2 data. Here are the red flags a scan catches before you wire the money.
7 giugno 202610 min
Guides
Why Does My Car Shut Off When I Stop? Causes, Fixes and Cost
Your car dies at every red light, then restarts fine. Here is what causes a car to shut off when you stop, how to find the fault, and what fixes cost.
7 giugno 202610 min
Guides
VIN Decode Plus OBD2: The Two-Step Pre-Purchase Check
Decode the VIN to confirm the car is the spec the ad claims, then run an OBD2 scan to read its condition. Two steps, fifteen minutes, before you pay.
6 giugno 20269 min
Guides
Torque Pro Alternative 2026: iPhone, Free, and Explained Picks
Looking for a Torque Pro alternative because you have an iPhone or want the data explained? Here are the honest options, what each does, and who they suit.
6 giugno 20268 min
Guides
Boost Pressure Sensor Symptoms: Diagnose Limp Mode (2026)
A failing boost or MAP sensor drops a turbodiesel into limp mode on motorway on-ramps. Here are the symptoms, the test, and how to confirm it with OBD2.
5 giugno 202612 min
Guides
Camshaft and Crankshaft Position Sensors: Symptoms and Test
Intermittent no-start or random stall? Learn the symptoms of bad camshaft and crankshaft position sensors, how to tell them apart, and how to verify with OBD2.
4 giugno 202612 min
Guides
Coolant Temperature Sensor Symptoms: How to Spot a Bad ECT
A bad coolant temperature sensor causes poor fuel economy, hard starts, black smoke, and false overheating. Here are the symptoms and how to confirm it.
2 giugno 202611 min
Guides
Why Is My Car Shaking? The 9 Causes and What Each One Costs
Your car shakes at idle, under braking, or at 90 km/h. Here are the nine real causes, which ones an OBD2 scan reads, and what each repair costs.
1 giugno 202610 min
Guides
Diesel Injector Failure Symptoms: Diagnose Before You Buy
A failing diesel injector knocks on cold start, smokes, and idles rough. Here are the symptoms, the cylinder-balance test, and how to confirm it with OBD2.
1 giugno 202612 min
Guides
EGR Valve Cleaning: DIY Steps, Cost, and OBD2 Check
Clean a carboned diesel EGR valve yourself for €10-30. Symptoms, step-by-step removal, when to clean vs replace, and how to verify the fix with OBD2.
30 maggio 202613 min
Guides
Glow Plug Testing and Replacement: A Diesel Cold-Start Guide (2026)
Long cranking on cold mornings and a flickering coil light point to glow plugs. Test each one with a multimeter, read the circuit codes, and know when to replace.
29 maggio 202612 min
Guides
Oxygen Sensor Testing and Replacement: A DIY Guide
Test a lambda sensor with OBD2 live voltage or a multimeter, learn why cleaning is a myth, and see what replacement actually costs. Petrol and diesel covered.
26 maggio 202613 min
Guides
Alternativa a OBDeleven senza abbonamento: 5 app a confronto (2026)
Alternative a OBDeleven senza abbonamento nel 2026. BimmerCode, Carista, Torque Pro, Car Scanner ELM, Skanyx a confronto. Acquisto unico contro crediti.
24 maggio 202610 min
Guides
Throttle Body Cleaning: Steps, Relearn, OBD2 Verify
Clean a sooty throttle body in under an hour for around 15 euros, handle the idle-relearn question honestly, and verify the fix with OBD2 live data.
24 maggio 202612 min
Guides
Carly vs OBDeleven 2026: Cost, Coding Depth and Which to Choose
Carly vs OBDeleven head-to-head 2026: pricing, BMW/Mercedes vs VAG coding depth, adapter lock-in, ongoing costs. Side-by-side comparison and verdict.
21 maggio 202611 min
Guides
Carly Alternative Without Subscription: 5 Apps for BMW & Mercedes (2026)
Carly alternatives without subscription in 2026 for BMW and Mercedes owners. BimmerCode, BimmerLink, OBDeleven, Skanyx, Torque Pro compared. One-time payment options.
18 maggio 202610 min
Guides
Car Scanner ELM vs Torque Pro 2026: Free, Android, iPhone Compared
Car Scanner ELM OBD2 vs Torque Pro 2026: free tier, platforms, customization, raw data. Side-by-side comparison with verdict and adapter pairing guide.
14 maggio 20269 min
Guides
Used BMW i3 Buyer's Guide: Battery Health and Range Check
Three battery generations, REX quirks, and four OBD2 checks that separate a healthy used BMW i3 from a tired one. Before you pay 8,000 to 28,000 euros.
6 maggio 202610 min
Guides
AdBlue Tampering: A 5-Minute OBD2 Check Before You Buy an EU Diesel
An AdBlue emulator or SCR delete is invisible on the dashboard but leaves stored DEF codes a generic OBD2 scan catches in five minutes. A specialist NOx read confirms the rest.
28 aprile 20269 min
Guides
EGR Delete Detection: What OBD2 Will (And Won't) Show on a Used Diesel
EGR deletion is the hardest of the three diesel emissions cheats to detect with OBD2. Here is what the scan tool reveals, what it cannot, and three physical checks that close the gap.
23 aprile 20269 min
Guides
How to Spot a Deleted DPF on a Used Diesel Before You Buy
A removed diesel particulate filter is illegal across the EU and costs EUR 1,500 to 3,500 to refit. Six checks (three visual, three OBD2) catch it before you pay.
18 aprile 20269 min
Guides
How to Check a German Used Car With OBD2 Before You Buy It
A 15-minute pre-purchase OBD2 scan tells you most of what the seller of an imported German used car would rather you didn't ask. Here is the exact checklist.
12 aprile 20269 min
Guides
How to Fix P0430: Catalyst Bank 2 Repair Cost
Fixing P0430 costs 110-270 euros if it is the Bank 2 oxygen sensor, or 300-1,900 euros for the converter. Here is how to tell which one before you pay.
17 marzo 20268 min
Guides
How to Fix P0507: High Idle RPM Causes and Repair Cost
Fixing P0507 ranges from free for a loose vacuum hose to around 400 euros for a throttle body. Here is how to find the cause of a high idle before buying parts.
14 marzo 20264 min
Guides
How to Fix P0401: EGR Cleaning vs Replacement Cost
Fixing P0401 starts with cleaning the EGR valve, under 20 euros if you do it yourself. Replacement runs 160-550 euros. Here is how to know which one you need.
12 marzo 20268 min
Guides
How to Fix P0446: EVAP Vent Solenoid Repair Cost
Fixing P0446 costs 60-180 euros total to replace the EVAP vent solenoid. Check the connector for corrosion first, as wiring is the second most common cause.
10 marzo 20265 min
Guides
How to Fix P0174 (Too Lean, Bank 2): Causes and Repair Cost
P0174 repair often costs under €200, starting with a €15 MAF clean, up to €500 for fuel pressure. How to diagnose the Bank 2 lean condition and fix it.
8 marzo 20268 min
Guides
How to Fix P0340: Camshaft Sensor Replacement Cost
Fixing P0340 usually costs 50-200 euros to replace the camshaft position sensor. Check the connector for corrosion first, then confirm the sensor failed.
7 marzo 20264 min
Guides
How to Fix P0172 (System Too Rich): Repair Cost and Steps
P0172 repair often costs under €15 if a dirty MAF sensor is the cause, with most fixes under €300. How to diagnose the rich condition and fix it yourself.
5 marzo 20267 min
Guides
How to Fix Misfire Codes P0300 to P0304: Repair Cost by Cause
Fixing a P0300 to P0304 misfire costs 40-250 euros for most cases. Here is how to tell which part failed - plug, coil, or injector - before paying for parts.
3 marzo 20267 min
Guides
How to Fix P0141: O2 Heater Repair Cost (Bank 1, Sensor 2)
P0141 repair starts with a pennies fuse check, then downstream O2 sensor replacement at €110 to €270 if needed. How to test the heater and fix it yourself.
1 marzo 20267 min
Guides
How to Fix P0135: O2 Sensor Heater Repair Cost (Bank 1)
P0135 repair starts with a pennies fuse check, then upstream O2 sensor replacement at €120 to €300 if needed. How to test the heater and fix it yourself.
26 febbraio 20263 min
Guides
How to Fix P0128: Thermostat Replacement Cost and Steps
P0128 repair means a thermostat replacement costing €95 to €260 in most cases. How to confirm the stuck-open thermostat and fix it before winter sets in.
24 febbraio 20268 min
Guides
How to Fix P0101: MAF Sensor Cleaning and Repair Cost
P0101 repair often costs under €15: cleaning the MAF sensor fixes about half of cases. If that fails, replacement runs €70 to €380. Step-by-step fix guide.
19 febbraio 20269 min
Guides
How to Fix P0016: Camshaft Correlation Causes and Cost
P0016 repair cost runs from €50 for an oil change to €3,000 for a timing chain, depending on whether the fault is oil, a VVT solenoid, or chain stretch.
15 febbraio 20268 min
Guides
BMW Fault Codes by Engine: N52, N54, N55 and What to Expect
BMW fault codes explained by engine family. VANOS, HPFP, turbo, oil leak, and DME codes for N52, N54, N55 with EU repair costs and diagnostic tool options.
25 ottobre 202514 min
Guides
EVAP Leak: Common Causes & How to Find It (P0442/P0456 Guide)
EVAP leak causing a check engine light? P0442, P0455, P0456 explained. Start with the gas cap. Causes, diagnosis, and repair costs in euros.
5 maggio 202512 min
Guides
Dati live OBD2: parametri, valori normali e cosa significano (2026)
Come leggere i dati live OBD2: trim carburante, tensione sonda lambda, MAF, temperatura liquido, posizione farfalla, anticipo accensione. I valori normali di ogni PID e cosa significa una lettura anomala, spiegati in parole semplici.
15 aprile 202520 min
Guides
Risolvere il P0171 (miscela magra): cause e costi
Riparare il P0171 costa da 50 a 800 €: una presa d'aria o il debimetro sporco sono gli interventi più economici. Diagnosi con le correzioni carburante e fai da te.
20 febbraio 202515 min
Guides
What is OBD2? Complete Beginner's Guide to Car Diagnostics
Learn how OBD2 works, find the port in your car, understand diagnostic trouble codes, know which problems you can fix yourself, and when to see a mechanic.
10 febbraio 202514 min
Guides
How Much Does P0420 Cost to Fix? Catalytic Converter Guide
P0420 repair cost runs from 150 euros for an oxygen sensor to 2,500 euros or more for a catalytic converter. Here is how to work out which repair you need.
20 gennaio 202514 min
How-To Guides
Check Engine Light: What It Means, Common Causes, and Repair Costs
Your check engine light is on. Learn what solid vs flashing means, the most common codes, how to diagnose them, and what repairs typically cost.
15 settembre 202415 min
Guides
Migliori strumenti di diagnosi auto 2026: prezzi, copertura multimarca e scelte per officine
Confronto dei migliori strumenti di diagnosi auto 2026: scanner, app, codifica multimarca e tablet pro per officina. Prezzi reali in euro da 30 € a 1.500 €.
30 agosto 202423 min
Guides
OBDeleven Review 2026: Price, Carly Comparison, and Is It Worth It?
Honest OBDeleven review for 2026: real prices (device + PRO/ULTIMATE subscription), comparison with Carly, VCDS, BimmerCode, and Skanyx, plus what it does and doesn't do on VW Group, BMW, Toyota, and Mercedes.
25 agosto 202414 min
Guides
Migliore app OBD2 2026: app gratis, Android e iPhone a confronto
Migliore app OBD2 2026: gratis, Android, iPhone testate. Car Scanner ELM, Torque Pro, OBDeleven, Carly, BlueDriver, Skanyx a confronto. Scegli quella giusta per la tua auto.
20 agosto 202416 min