Engine Misfires !!! P0300 - Flashing SES

Many people are now watching TV and becoming more familiar with tuning. The Lingo talks about individual cylinder tuning with Timing or fuel. Neither is available with the stock ECM.   - Again you cannot tune any cylinders individually - Not fuel Or Spark   

If there is a flashing engine light or  P0300 for cylinder misfire 

There are no Codes in GM logic for individual cylinder misfires - Meaning there is NO Code in the system showing that's every going to show up to tell you what exact cylinder has a problem - nothing showing cylinder 1 misfire - cylinder 5 misfire - There is one single code that is P0300 - Thats it 

You will have to add the channels for currect misfires with hptuners and read the data -  

When adding channels select CURRENT misfires - not history misfires with a camshaft normally it will show some small single digits at idle when a cylinder is reading 20-30 that's a problem when it is reading 50-100 that would be 100% dead and not working 

Misfires are NOT a tuning issue for single cylinders - that means if you are getting a flashing engine light for cylinder 3 this is Not a tuning issue - Again this is not a tuning problem and you will have to mechcially check this further 

After 10 Emails and constant Mechanial issues that limit us from tuning we do charge a retune fee of 125.00 

99% of the time this is something with Plugs and wires to start with - Most are running stock plugs in a modified engine or running way too large of a plug gap 

and as always we need log files - without log files we cannot advise you - we cannot see progress better or worse so we need logs to help us help you