Adv3nture Posted August 7, 2024 Share Posted August 7, 2024 Greetings, everyone! I am experiencing misfires on all cylinders in bank 2 of my 2008 S5 4.2 B8. Bank 1 is free from misfires and operates normally. I have conducted a compression test and here are the findings... The pressure is between 1 and 150 pounds per square inch (psi). The pressure range is from 2 to 150 pounds per square inch (psi). The pressure range is from 3 to 150 pounds per square inch (psi). The pressure range is from 4 to 150 pounds per square inch (psi). The pressure range is from 5 to 220 pounds per square inch (psi). The pressure is 215 pounds per square inch (psi). The pressure is 185 pounds per square inch (psi). The pressure range is 8 to 225 pounds per square inch (psi). I am perplexed. Is bank 2 exhibiting elevated compression? If so, what is the underlying reason of high compression? Thank you. Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 Is there anyone available? Link to comment Share on other sites More sharing options...
Talentrews Posted August 7, 2024 Share Posted August 7, 2024 The V8 engine has carbon buildup on the valves, which might potentially result in reduced compression if the valves are unable to shut effectively. High compression may result in the infiltration of fluids like as gasoline, oil, and coolant into the cylinder. Are all the plugs in satisfactory condition? Are there any damp electrical plugs? Link to comment Share on other sites More sharing options...
Starat Posted August 7, 2024 Share Posted August 7, 2024 What information does the VCDS scan report provide? Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 Greetings everyone, I appreciate your responses. The plugs are desiccated yet coated with carbon deposits. Yesterday, I performed a VCDS scan and will now provide the results. Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 The car is causing me extreme frustration and I am gradually losing hope with it. After the scan, the engine mount was changed, but it did not have any effect. Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 Is there anyone available? Link to comment Share on other sites More sharing options...
RacingNight Posted August 7, 2024 Share Posted August 7, 2024 You seem to possess a notable degree of impatience. Perhaps you might exercise patience and observe the situation. Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 Yes, I may have unintentionally given that impression. My apologies! The car is now causing me extreme frustration. Link to comment Share on other sites More sharing options...
Ledgerciao Posted August 7, 2024 Share Posted August 7, 2024 You received many replies inside a single day. Therefore. You may either hire an expert or exercise a little of patience. The decision is yours. Link to comment Share on other sites More sharing options...
Adv3nture Posted August 7, 2024 Author Share Posted August 7, 2024 Indeed... You are only repeating the statements made by Fred. I get the main idea and I am now awaiting assistance. Link to comment Share on other sites More sharing options...
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