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The BMW Range
3 Series
E30
Hi Everyone! I'm new and advise needed!
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<blockquote data-quote="jarance" data-source="post: 334470" data-attributes="member: 21"><p>The M40 ECU is the engine management of the car.</p><p></p><p>It have works based on various sensors feedback such as:-</p><p>1. crankshaft sensor</p><p>2. AFM vanes position</p><p>3. AFM air inlet temperature</p><p>4. Throttle body position</p><p>5. O2 sensor on the exhaust manifold</p><p></p><p>Based on the above information, the ECU will optimized the firing condition of the fuel injection and spark plug.</p><p></p><p>In the event of failure of the crankshaft sensor, the ECU will shutdown the fuel pump and spark plug.</p><p></p><p>It does have a small memory in the module to store the mapping of the engine and driving condition.</p><p></p><p>BTW, I am refer to M40 engine and not the older version of the E30.</p><p></p><p>I have known somebody actually plug-in some gadget to simulate a low temperature at the AFM in order to advance the firing of the spark plug. It actually work for a while but somehow later, some of them comment that it back to normal. i.e engine rev is back to normal and pickup is gone.</p><p></p><p>There are some people who have actually experience that their car is more responsive after they go for a aggressive drive (carbon burning). Now sure how true this is all as I have personally have not done it myself.</p><p></p><p>For my E36-316i (M40 engine also) , I sometime get good fuel consumption but poor response but sometime get average FC but better response after going for a drive with the club..</p></blockquote><p></p>
[QUOTE="jarance, post: 334470, member: 21"] The M40 ECU is the engine management of the car. It have works based on various sensors feedback such as:- 1. crankshaft sensor 2. AFM vanes position 3. AFM air inlet temperature 4. Throttle body position 5. O2 sensor on the exhaust manifold Based on the above information, the ECU will optimized the firing condition of the fuel injection and spark plug. In the event of failure of the crankshaft sensor, the ECU will shutdown the fuel pump and spark plug. It does have a small memory in the module to store the mapping of the engine and driving condition. BTW, I am refer to M40 engine and not the older version of the E30. I have known somebody actually plug-in some gadget to simulate a low temperature at the AFM in order to advance the firing of the spark plug. It actually work for a while but somehow later, some of them comment that it back to normal. i.e engine rev is back to normal and pickup is gone. There are some people who have actually experience that their car is more responsive after they go for a aggressive drive (carbon burning). Now sure how true this is all as I have personally have not done it myself. For my E36-316i (M40 engine also) , I sometime get good fuel consumption but poor response but sometime get average FC but better response after going for a drive with the club.. [/QUOTE]
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Home
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The BMW Range
3 Series
E30
Hi Everyone! I'm new and advise needed!
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