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Hi all, I've recently been battling tuning my car(hcr32). A couple months ago I could connect to my ecu(nistune chipped) and it would sometimes lose connection (even with plms cable). This made me make some extra grounds and had no luck. Now recently, I cant even connect at all (Nistune gives me the spare com port error). Ive tried to connect with different cables, nistune software and datascan software, even tried the paperclip jump trick and got no response from the dash when I would before a couple months ago. I took out my ecu and inspected all points inside the ecu and it looks good, when i tried to turn the knob on the ecu to flash the diag led, I got absolutely nothing. I rewired the consult port with new wiring and a new port connection, still get nothing.. Does anyone have any advice? I'm leaning towards a bad ecu since the led wouldn't even light, but i'm not 100% sure.

Thanks for any help in advance.

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1 minute ago, "G" said:

Did you check the 10amp ecu fuse?

The one under the drivers side dash, yes.

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