P CODES (POWERTRAIN) P0300 - P0399

Car Shakes Really Bad When In Drive And Reverse. Rpm's Are Constantly Jumping And Is Worse When The Ac Is Turned On. (My Ac Is Broken...

Hey, I've Done My Research And Cannot Figure Out How To Fix The Problem. I Have Replaced Everything Electrical From And Including The...

I Have Replaced The 02 Sensor, Injector For Cyl. #2, Wires, Plugs It Was Tune Up Time Anyway. I Just Replaced The Cam Sensor And Sysc....

Engine Mechanical Problem 1999 Kia Sportage 4 Cyl Four Wheel Drive 98000 Miles Cylinder 1 & 2 Misfire. Did A Tune Up, Changed Plugs And...

I've Already Changed The Spark Plugs. There Seemed To Be A Little Bit Of Oil On The Old Ones. Normal? Is There Anyway You Could Tell Me...

Car Started Idling Rougher Over Past Week Or So. Check Engine Light Came On Today. Car Still Runs Fine, No Missing, Bucking, Hesitation...

Suddenly My Car Started To Stumble And Hesitate. Check Engine Light Was Flashing Then Remained Constant. I Took It To A Local Mechanic. And...

Getting A Misfire On Cylinder 2, But I Replaced Wires Distributor Cap And Rotor And Spark Plugs, Still A Misfire. I Don't Know What To...

Engine Performance Problem 1999 Honda Civic 4 Cyl Two Wheel Drive Manual My 99 Civic Si Hesitates Once It Warms Up. Replaced Plugs...

Engine Problem 2001 Hyundai Sonata 4 Cyl Wheel Drive Type Unknown Automatic 73000 Miles Our 2001 Hyundai Sonota Started Idling Low...