Fuel pump power line
Thread Starter
Racer
Joined: Aug 2010
Posts: 469
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From: Heath Texas
Fuel pump power line
Where is the easiest place to intercept the power line to the fuel pump?
I cannot make hide nor hair from the shop manual on the best place to identify that wire bundle.
I cannot make hide nor hair from the shop manual on the best place to identify that wire bundle.
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If your planning to ADD something to the FUEL PUMP electrical circuit,, you may want to reconsider.. The IGNITION SWITCH contacts supply that power and they are already TAXED to death to supply the required current for the normal fuel pump.
If you put a relay on that wire and allow the relay to handle the additional LOAD, that would be fine. A relay does not require much current for the control side of the coil.
The EASIEST place to add a connection is right at the drivers side fuel tank electrical connections OR at the engine compartment Fuse panel fuel pump relay.
BC
If you put a relay on that wire and allow the relay to handle the additional LOAD, that would be fine. A relay does not require much current for the control side of the coil.
The EASIEST place to add a connection is right at the drivers side fuel tank electrical connections OR at the engine compartment Fuse panel fuel pump relay.
BC
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
What type of car was stolen? The theft deterrent system on a C5 disables the starter, and fuel injectors. Unless your "smash and grab" thief has the ability to try all key resistance combinations(with keys)...that car is not going to start.
Thread Starter
Racer
Joined: Aug 2010
Posts: 469
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From: Heath Texas
I know about the capabilities of the C5 system. Cool beans. I would just like to add a redundant and separate deterent to starting.
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
If I were going to do it, I would install a switch in series with the ground for ignition relay 42. Flip the switch, and it kills the injectors and coils.
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
WOW !!!!
SCARREY!! You and I think VERY MUCH A LIKE!!!!!
That’s the EXACT thing that I was thinking the second he said theft deterrent!
It’s a LOT easier to break a GROUND WIRE than it is a power wire. There all over the place and easier to get to!! There are a LOT of other things that you could easily KILL to keep people from driving the car. I use to disconnect the connector for the Throttle Motor when I went on vacation and left the car home. The kids would have NEVER figured that one out!! Car will start and it will run really poorly (reduced power) but unless you Idle it around town, you NOT going anywhere!
Bill
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Thread Starter
Racer
Joined: Aug 2010
Posts: 469
Likes: 1
From: Heath Texas
Ah HA! Ground interrupt sounds like a better plan.
I used a kill switch with a key on my prior Honda. Car would start, but sputter out (fuel pump offline). Switch was really hard to find. Just prevented the trainee car jackers from making off with it.
I used a kill switch with a key on my prior Honda. Car would start, but sputter out (fuel pump offline). Switch was really hard to find. Just prevented the trainee car jackers from making off with it.
Last edited by Evil Oil Apologist; Jun 15, 2011 at 02:52 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,292
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From: Dyer, IN
The the following grounds go to a common splice point(S120) , and are in turn grounded at G106:
Relay 42
PCM
TAC
MAF.
The splice point, is located about 6 inches from the main engine harness, down the bundle that leads to the PCM. If you don't want to mess with the splice point, you can put your switch in line with the terminal a G106, and the engine ground. Done in this fashion, it will kill the PCM as well though.
