yoeddynz

DIY Fuel injection thread.

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Chinese LSU 4.9 came today.

 

Looks different to OE 4.9 but works perfectly so far (seems bang on in terms of accuracy, faster warmup time than OE). Will be interesting to see how long it lasts, but can't complain too much at $43.

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On 31/12/2018 at 10:03, Roman said:

Yeah as we had leaded fuel at the time? 

Yup

 

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megasquirt 1 (2.2) question. 

on my old engine i had the radiator fan handled by the ecu no problem, but ever since i switched to the twincam it hadnt worked, (it may just be that this is when i first noticed too)

i had it setup to trigger a relay from the (-) side of LED18. but now when ever i hook up the relay to it it turns the LED off, if it was on. the ecu software is functioning properly switching the output on and off ect. 

i measured voltage at that neg pin and its ~2.5v when the led is off and ~5v when the led is on. it never seems to switch to ground like i thought it was meant to. 

any ideas whats going on here? maybe i fired the transistor somehow. 

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