Hi all,
I recently acquired a 5 speed 1984 318i. After driving the car home about 15 miles I took her for a spin around a parking lot near my house to scare out any gremlins she may have...After a significantly loud pop (sounded different than a backfire though) upon a hard right turn, shift and acceleration she bogged down and refused to accelerate any more. We pulled over to check things out and saw the cat was glowing red hot, it was running very rich, idling poorly and not revving smoothly or past 5k rpm so we killed it and towed her home. I cut the exhaust before the cat and pulled it off in the hopes it was just a clogged cat but no such luck.
I then changed the plugs and wires since the plugs were fouled black and the wires had a few cracks in the boots. This helped but didn't solve the problem and now, after running an ICV bypass in an attempt to diagnose the problem, the car won't start. I put the ICV back on so as to return it to the condition it was in when it was starting but running, but it still won't start. I've also already tried unplugging various harness connections such as the cold start sensor, afm, etc in an attempt to find the problem but have had no luck so they have all been plugged back in.
The engine/starter is turning over, it has fuel and spark and seems to have compression by the feel of hand cranking it (don't have a compression tester on hand right now) but just won't fire up and run. I've also attempted to compare the bay to realoem.com to make sure everything is in it's right place, connected properly and not missing grounds and it appears to be in order. I am working on getting the timing checked so other than that, does anyone have any ideas as to why she won't start now?
I recently acquired a 5 speed 1984 318i. After driving the car home about 15 miles I took her for a spin around a parking lot near my house to scare out any gremlins she may have...After a significantly loud pop (sounded different than a backfire though) upon a hard right turn, shift and acceleration she bogged down and refused to accelerate any more. We pulled over to check things out and saw the cat was glowing red hot, it was running very rich, idling poorly and not revving smoothly or past 5k rpm so we killed it and towed her home. I cut the exhaust before the cat and pulled it off in the hopes it was just a clogged cat but no such luck.
I then changed the plugs and wires since the plugs were fouled black and the wires had a few cracks in the boots. This helped but didn't solve the problem and now, after running an ICV bypass in an attempt to diagnose the problem, the car won't start. I put the ICV back on so as to return it to the condition it was in when it was starting but running, but it still won't start. I've also already tried unplugging various harness connections such as the cold start sensor, afm, etc in an attempt to find the problem but have had no luck so they have all been plugged back in.
The engine/starter is turning over, it has fuel and spark and seems to have compression by the feel of hand cranking it (don't have a compression tester on hand right now) but just won't fire up and run. I've also attempted to compare the bay to realoem.com to make sure everything is in it's right place, connected properly and not missing grounds and it appears to be in order. I am working on getting the timing checked so other than that, does anyone have any ideas as to why she won't start now?
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