Changed oil and man do I have problems

[1watson]

Just purchased a 92 Q45 that is in sweet condition with 98K. it is a "basic" Q model . A lady owned it out of Atlanta who moved to MI and decided to sell the Q. Absolutely clean but was in need of an oil change.

I changed the oil and filter. While spending countless minutes pondering how to get to the oil filter, I decided to removed the air box and access it from above. Big mistake. I have the following problems that appeared immediately after the oil change:

1. Very difficult to start, starter spins for ever and car wont start until I press the gas pedal to floor. Once started car runs ok but "misses" under load intermittently. Car idles fine. I was reading a post last evening and found that the MAF sensor/harness perhaps could be teh problem.

2. The check engine light is lit

What must I do to restore previous condition.

[Rev_D21]

Um check the air box again. Chances are you didnt put it back on tight enough and/or you dislodged a wire harness in the process on moving it. Make sure all the connectors are secure and that the all hoses are in their proper locations.