× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: '13 Mazda 3 with constant P0303, cannot feel misfire
Posted to Technical Discussion Forum on 8/19/2019 4 Replies

Fuel pressure desired/current match beautifully. On shut down current pressure PID does gradually climb, never drops. LT around 3%, ST 0%, sometimes -3% to -5%. Compression lowest 170, 165, 170, 175 across cylinders. Leakdown held 98 psi out of 100 on #3.

Un... Login to read more.

Files Referenced:

thumbnail

4 Replies Received (View Replies)