B577 RELAY

MX3ak · Post by **MX3ak** » June 4th, 2007, 1:30 pm

Hello

Does anyone knows where this relay is connected to ?

(you know, its the one next to the ECU)

atlantamx3 · Post by **atlantamx3** » June 4th, 2007, 1:33 pm

Fuel Pump.

MX3ak · Post by **MX3ak** » June 4th, 2007, 1:41 pm

Ok

And what triggers it, ECU ?

PATDIESEL · Post by **PATDIESEL** » June 4th, 2007, 4:35 pm

Yes, the ECU. Are you having an issue with it? Why are you asking?

MX3ak · Post by **MX3ak** » June 4th, 2007, 5:00 pm

Because it doesn't "click" when I turn ignition ON.

Because I did a short circuit in the Diag Box

PATDIESEL · Post by **PATDIESEL** » June 4th, 2007, 10:47 pm

Oh, that was you- ouch. Try and replace it with another and check back with us. I saw your other post, but had no idea where to start looking.

tehbrookzorz · Post by **tehbrookzorz** » June 4th, 2007, 11:21 pm

I seem to remember that being called the "Circuit opening relay" in a diagram I was looking at. Definitely is for fuel pump.

hgallegos915 · Post by **hgallegos915** » June 4th, 2007, 11:47 pm

Thats my anti theft! I remove it whenever I leave the car and take it whenever possible (in bad neighboorhoods) .. hey they hotwire the car and it wont start hehe.

tehbrookzorz · Post by **tehbrookzorz** » June 5th, 2007, 12:14 am

lol. Nice, Hector.

MX3ak · Post by **MX3ak** » June 5th, 2007, 5:05 am

Thanks for the support!...

one question, is there any difference between K8 ECU's besides the ones for ODBII ?

that's because I've seen many diferent numbers on them...

PATDIESEL · Post by **PATDIESEL** » June 5th, 2007, 8:29 am

I don't think so. All OBDI K8 ECUs should be the same. The auto trans ones might have a different number, but should run the manual just fine.

MX3ak · Post by **MX3ak** » June 15th, 2007, 9:14 am

I've replaced ECU (the one projectmx sent to me) but still the same

I've checked for power at B577 relay and nothing...

What could it be?

bdr2k5 · Post by **bdr2k5** » June 15th, 2007, 10:07 am

whats the car really doing?, is it at least turning?! more info plz

MX3ak · Post by **MX3ak** » June 15th, 2007, 10:36 am

It cranks = OK

12v (B+) at Fuel Injector Relay (B6S8) with Ignition Switch ON = OK

12v (B+) at ECU 1A (Batery) = OK

12v (B+) at B577 = NO!

12v (B+) at ECU 1B ( Fuel Inj. Relay) with Ignition Switch ON = NO!

Thanks for help

MX3ak · Post by **MX3ak** » June 15th, 2007, 11:06 am

Fuel Injector Fuse's blow

Sorry dudes, my mistake. It was that since the beginning

Case closed . Thanks again!