Would a broken map sensor connector cause an odb1 engine code 33 and 34? Right now I have the connection zip tied, but it just will not run right. It is a 1992 Chevrolet S10 2.8 v6.
Yes. If the engine sensor is unable to transmit the frequency to the ECM it will illuminate the check engine light and possibly store code 33 and code 34. The ECM monitors the frequency and thus determines airflow into the engine. Typical idle MAF is 5 to 7 grams per second.