Where is e30 ecu

Based on a fuel map inside the main ECU chip , the system could then control the correct fuelling right across the engine rpm, load and temperature range.

Main article: ECU Pinouts. The ECU for each engine management system is differentiated by the size of its plug. Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously. Share Share. Basemap Included Launch control and flat gear shift available, require stwich. For more details please get in touch What you will get is flexible and configurable fuel and ignition management that will work for the majority of every day type setups.

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Two pins of the DME relay, 30 and 86, are connected directly to the Battery through an unfused red wire and are therefore hot constant 12V at all times. Pin 85 is connected to the ECU; usually pin When the ignition is turned on, the ECU receives 12V at pin It will then switch pin 36 to ground which will activate the DME relay.

When the relay activates, it will connect pin 30 to both pins 87, supplying live power to the Fuel pump relay , the injectors , the ABS if fitted, and back to the ECU at pin Hi Jim, What I'm trying to diagnose is a hard start issue. This only happens when fuel pressure is at zero. I've checked fuel pressure with a gauge and it holds fine.

A check valve at the fuel pump was installed new from Pelican Parts. I've also replaced the crank position sensor and coolant temperature sensor. The car runs a lot smoother but otherwise, no luck. I've also replaced the FPR for good measure and ensured there were no vacuum leaks including the check valve between the throttle body and charcoal canister. The car runs rich so my gas mileage is poor. Upon a cold startup assuming fuel pressure being zero the car burns very rich where my spark plugs are soaked in fuel.

I'm at a loss here. Any leads? Build thread Bimmerlabs. Obviously an E Originally posted by bcrdukes View Post. Originally posted by smooth View Post. Originally posted by nando View Post. My wife drives a Nissan Sentra, so if I said my wifes car and you assumed E30 you would be wrong.