Browse categories
Explore
Fiverr Pro
English
$
USD
I will diagnose car check engine light obd2 trouble codes u0121 p0420
About this Gig
Check Engine Light On? Don't get scammed by mechanics.
I'm an automotive diagnostic specialist with 5+ years fixing tough electrical codes like U0121 Lost Communication and P0420 Catalyst Efficiency.
Mechanics charge $150 just to read codes. I give you the REAL fix.
WHAT YOU GET:
Code explained in plain English - no confusing jargon
Top 3 most likely causes for YOUR specific car model
Step-by-step test plan with multimeter & wiring checks
Parts list + repair cost estimate so you know the fair price
Professional PDF report you can show any mechanic
I specialize in CAN Bus faults, ABS communication errors, and emission codes that most shops misdiagnose. I work with all OBD2 scanners: BlueDriver, FIXD, Autel, Launch, Snap-On.
WHY ME?
- I solve electrical problems other mechanics avoid
- Save $100s by fixing the root cause, not just parts
- 24hr delivery on Basic package
- Detailed wiring diagrams for U
Device:
Other
Operating system:
Windows
•
Other
FAQ
What information do you need from me to start?
All of them. BlueDriver, FIXD, Ancel, Autel, Launch, Snap-On, Innova, and dealer tools. If it can read a code, I can diagnose it. You just send me the code number and I handle the rest.
How fast is the delivery? Do you offer same day?
Basic package is delivered in 24 hours. If you need it faster, select "Extra fast delivery" for 12-hour turnaround. Standard and Premium packages take 1-2 days because I include detailed wiring diagrams and test procedures. I work 7 days a week.
What if your diagnosis is wrong? Do you offer revisions?
Basic includes 1 free revision, Standard has 2 revisions, Premium has unlimited revisions. If the first test plan doesn't fix it, send me the new test results and I'll update the diagnosis for free. My goal is to get your car fixed, not just send a PDF.
Can you help if my car won't start or has no communication?
Yes. "No communication" codes like U0001, U0100, U0121 are my specialty. This means a CAN bus network problem. I'll give you a pinout chart and voltage tests to find the broken wire or bad module. You just need a basic multimeter. No scan tool needed for testing.
