1990 running problems. Any tips?
My 1990 2.1L has had some bad running issues after it first started while driving on the highway. I bought the van last year and there was not a really good history of it so I recently decided to replace most parts based on some online readings like this site. So far I have replaced: airflow meter, o2 sensor, catalytic converter, fuel pump and filter, ignition plugs and wires, temp 2 sender, fuel injectors but so far no luck and improvement at all. Some black smoke and wet particles are often coming out of the exhaust. I would be surprised that the timing would be the issue but I will have to have that checked just to make sure. Checked grounds. I'm waiting for a hall sender and a ECU hoping that i can narrow down the possible causes. I know there is no magical answer but maybe someone solved this problem and I can at least give it a try.
