does anyone know what this fuse powers in the inside fuse box?
Feb 28, 2011, 10:23 AM
#16
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Have you changed your exhaust lately? It might be the wires from the o2 sensor grounding out on the exhaust or chassis. I was doing some work on an NSX and was about to order a whole new harness when I found that bull****. Car would blow the fuse right at "ON" before even starting the car.
Feb 28, 2011, 11:34 AM
#18
There are quite a few grounds around the intake, ones that bolt right to it ect. The VSR most likely doesn't have provisions for those, they should be easy to see hanging off the harness all lonely.
I'll look in my wsm for a diagram of the fuse, mine is a IX but it might give you something to go off of.
I'll look in my wsm for a diagram of the fuse, mine is a IX but it might give you something to go off of.
Feb 28, 2011, 11:36 AM
#19
Have you changed your exhaust lately? It might be the wires from the o2 sensor grounding out on the exhaust or chassis. I was doing some work on an NSX and was about to order a whole new harness when I found that bull****. Car would blow the fuse right at "ON" before even starting the car.
which o2 sensor were you referring to? the one on the o2 housing or the one on the test pipe/ cat?
Mar 2, 2011, 04:43 PM
#24
WOW.. so i ended up taking everything apart to try n find it.. i wasted like 15a fuses already testing this issue.. so far i found out that if i disconnect one of the connectors that go to the fuse box, the fuse wont blow but im not sure which end of the connector to test to see which end has the short.. ill take a pic of the connector when i can
i was thinking of testing each pin one at a time to narrow it down and figure out what pin is shorting and then maybe looking up what pin that is for
i was thinking of testing each pin one at a time to narrow it down and figure out what pin is shorting and then maybe looking up what pin that is for
Mar 3, 2011, 01:41 PM
#28
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Heres a quick pic of the IGN ckt diagram to fuse 1. I sent it to ya via e-mail as well so you can blow it up to see the stuff better.
Going by the diagram the connector you are looking at is A-29 and the coil power is pin 4 of that connector.
Mar 4, 2011, 08:10 AM
#30
The ignition system uses ground #4 and #11. Ground #4 is on the driverside shock tower (neg battery cable bolt) and #11 is on the engine around the T-stat area. (all the same harness though)
You want to disconnect the battery first because having it connected can mess with your ohm readings.
I usually just set the meter to the "beep" setting on ohms, then connect one end to the ground cable. Touch the other probe to the pins in the connector of the suspect ckt to see if they do in fact have continuity to ground. (meter will beep, or you will get an ohm reading)
Then you start removing components from the system untill you narrow down the short by unplugging them. Easy in this ckt because all you have in it is the two coilpacks and the ecm, that should lead you in the direction of the short.
You want to disconnect the battery first because having it connected can mess with your ohm readings.
I usually just set the meter to the "beep" setting on ohms, then connect one end to the ground cable. Touch the other probe to the pins in the connector of the suspect ckt to see if they do in fact have continuity to ground. (meter will beep, or you will get an ohm reading)
Then you start removing components from the system untill you narrow down the short by unplugging them. Easy in this ckt because all you have in it is the two coilpacks and the ecm, that should lead you in the direction of the short.