1990 Cadillac DeVille Q&A

1990 Cadillac DeVille Question: burning too much!

why is my engine burning too much gas? -
Answer 1
There could be any number of reasons your 1991 Cadillac DeVille is burning to much gas. Leaking or faulty fuel injector(s), leaking fuel pressure regulator, faulty O2 sensor to name a few, The first steps would be a complete inspection of the fuel system including a fuel pressure test. Also, checking engine control module for fault codes should be done. -
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