87GNcospg
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- Joined
- Jun 23, 2003
I am working on a friends Turbo Trans Am that has a rough idle. While setting the TPS I noticed his in-line fuel pump runs continuously with the key on and engine off. It doesn't stop after it is primed. It will run for as long as you have the key on.
To my knowledge, this car still has the stock in-tank fuel pump and this separate in-line fuel pump.
I am assuming a previous owner was too lazy to replace the in-tank fuel pump for performance gains and just threw on an in-line pump to get extra fuel. I know the TTA fuel pumps are a pain to replace.
Is this common on TTA for people to keep the stock pump and put an inline pump?
There was a larger turbo, larger injectors and some other bolt ons previously on this car but we have put the majority of the stock components back on. The goals of the TTA are for it maintain slightly higher than stock horsepower numbers so the current fuel setup is ok for now other than it being extremely annoying with key on engine off.
I have included a picture of how the in-line pump is wired to one of the "IGN" slots on the fuse panel. Two splices coming off the fuel pump wire (after the fuse) are for the electric cut out and the greddy profec spec B II boost controller. All this was installed by previous owner.
What is the best thing to do here? Re wire the boost controller/electric cut out and hot wire the fuel pump? Is there another way to keep the pump from running continuously other than pulling it from the "IGN" slot like i have shown?
I do not have the specs on the in line fuel pump so i am not sure if this is just the basic design of the pump or if this is some sort of basic electrical stuff that i am missing.
To my knowledge, this car still has the stock in-tank fuel pump and this separate in-line fuel pump.
I am assuming a previous owner was too lazy to replace the in-tank fuel pump for performance gains and just threw on an in-line pump to get extra fuel. I know the TTA fuel pumps are a pain to replace.
Is this common on TTA for people to keep the stock pump and put an inline pump?
There was a larger turbo, larger injectors and some other bolt ons previously on this car but we have put the majority of the stock components back on. The goals of the TTA are for it maintain slightly higher than stock horsepower numbers so the current fuel setup is ok for now other than it being extremely annoying with key on engine off.
I have included a picture of how the in-line pump is wired to one of the "IGN" slots on the fuse panel. Two splices coming off the fuel pump wire (after the fuse) are for the electric cut out and the greddy profec spec B II boost controller. All this was installed by previous owner.
What is the best thing to do here? Re wire the boost controller/electric cut out and hot wire the fuel pump? Is there another way to keep the pump from running continuously other than pulling it from the "IGN" slot like i have shown?
I do not have the specs on the in line fuel pump so i am not sure if this is just the basic design of the pump or if this is some sort of basic electrical stuff that i am missing.