Hi, I have a 99 E430 and since 2 weeks ago the engine light comes on. This problem is intermittent an I had the diagnostics codes read from the car. There were 2 issues, H P0170 Fuel Trim(Bank 1) and H P0173 Fuel Trim (Bank
2).I would appreciate help in translating these codes to possible root causes of the problem. Also let me know what repairs and cost estimates would be to resolve this. Any workarounds that would result in cost-savings is highly welcome.
Thanks for your help.
Rick