Fuel System - MIL ON/DTC P0300/P0301-P0310 Stored
01 MIL on (P0300 and/or P0301 - P0310 stored in ECM)
20 10 03
2022030/2
June 2, 2010
Supersedes Technical DIAGNOSIS AND REPAIR Group 20 number 09-09 dated November 10, 2009 for reasons listed below.
Affected Vehicles
Condition
^ MIL on.
^ One or more of the following DTCs are stored:
^ DTC P0300 (Random/Multiple Cylinder Misfire Detected).
^ DTC P0301 - P03010 (Cyl.1 Misfire Detected - Cyl.10 Misfire Detected).
Technical Background
Low fuel quality in combination with a short distance driving cycle allows hydrocarbons to form carbon deposits.
Deposits interrupt tumble for efficient fuel / air mixture, causing cold start misfire.
Production Solution
208
Not applicable.
Service
1. Add fuel additive G 001 700 03 or G 001 770 A2 directly into the fuel tank, following the mix ratio. For example, 120 ml per 30 liters gasoline,
300 ml per 20 gallons of gasoline.
2. Drive the car 60 miles. Note in and out mileage on RO.
3. Check for cold start misfire at the next cold start.
Tip: This method was proven to be very effective when carbon deposits on the injectors are the root cause.
If misfire discontinues, carbon on the injectors was causing misfire. The repair is successful and complete.
4. After repair, give one bottle of fuel additive G17 to the customer. Instruct the customer to add the fuel additive to a full fuel tank after 3,000 miles.
5. Please advice the customer to use Top Tier fuel. (See TSB 2014753.)
Warranty
Required Parts and Tools
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
