I have a friend who installed an s50 on a 318is 1991, the engine was working fine before installing on the e30.
The problem is the engine works better with the flowmeter backwards, it still has a small rough idle but after 1,000 - 1,500 rpm it opens decently. If you install the flowmeter how it goes the idle very gets rough and end up shutting down.
We have try 2 different flowmeter and it does the same. We have check the wiring harness from the flowmeter to the ecu and it looks good everything.
Some additional info:
The car has no air filter or intake tube.
The car could have bad gas, after been parked for a year.
But it doesnt make sense that it works better the wrong way.
The problem is the engine works better with the flowmeter backwards, it still has a small rough idle but after 1,000 - 1,500 rpm it opens decently. If you install the flowmeter how it goes the idle very gets rough and end up shutting down.
We have try 2 different flowmeter and it does the same. We have check the wiring harness from the flowmeter to the ecu and it looks good everything.
Some additional info:
The car has no air filter or intake tube.
The car could have bad gas, after been parked for a year.
But it doesnt make sense that it works better the wrong way.
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