[hardhitter]

Tonight I installed a svt fuel pump, 42lb injectors, and a 42lb MAF and the car doesn't like it at all. This is in preparation for a supercharger. It bogs down a lot when I floor it and shut off while it was idling. Also the odometer and speedometer stopped working for a while but later came on. Does anyone know what's wrong? Does it just need tuning? This is just on the stock vehicle with no supercharger yet. I really need the car to be working so thanks for the help.

[zerofx150]

yes you need a tune for the injectors and MAF, is the pump a return or returnless. I can't explain the gauges.

[mjkids]

you don't need those big injector on a stock car they will work nice with the s/c. thats what i have on my car and they work nice and what do you mean a 42lb maf

[MustangMatt96GT]

Does the SVT focus pump require the FPDM wiring?

[gsjohnson]

I had the same thought process as you when I was preparing to install my P1SC. I waited on the injector and MAF upgrades until the actual blower install because I knew there would be driveability issues. I only wanted to pay the Dyno/Tuner one time. I didn't want to have to keep going back and paying him as I finished each mod. I did install the Focus pump prematurely and drove the car around for a couple of weeks and the car ran great. In fact, I was certain the car felt a little quicker than before. I also installed and mounted my intercooler along with the connectors at each end (taped them closed) prior to the blower install so I could continue to drive the car around. Like you, I was trying to minimize the down time for when I was actually going to go for the blower install. But then...I hit a huge snag when I went to install those BBK valve covers. I thought I would do that in an afternoon and got hung up...learned that this install was harder than the blower install. I ended up going for the complete blower install during the valve cover install. Best laid plans...

[gsjohnson]

Originally Posted by MustangMatt96GT Does the SVT focus pump require the FPDM wiring?

-1...No

[mjkids]

i think it does. i was at my buddy last night and is swaping his gt into a cobra and he ran the pump last night and he was talk about running wire for it but he is swaping the whole car so he is changing the wire haress to i will ask them

[gsjohnson]

Originally Posted by zerofx150 yes you need a tune for the injectors and MAF, is the pump a return or returnless. I can't explain the gauges.

The Focus pump is an OEM install...No return

[gsjohnson]

Originally Posted by mjkids i think it does. i was at my buddy last night and is swaping his gt into a cobra and he ran the pump last night and he was talk about running wire for it but he is swaping the whole car so he is changing the wire haress to i will ask them

From personal experience (and I perform all of my own work), the Focus pump is a direct bolt in with no mods required. The Focus pump does come with the basket and sending unit like the Mustang does, but they are different. So you do have to remove the pump from their respective baskets and swap the pump over to the Mustang basket/sender, but it is a direct plug in with no mods

[mjkids]

Originally Posted by gsjohnson From personal experience (and I perform all of my own work), the Focus pump is a direct bolt in with no mods required. The Focus pump does come with the basket and sending unit like the Mustang does, but they are different. So you do have to remove the pump from their respective baskets and swap the pump over to the Mustang basket/sender, but it is a direct plug in with no mods

cool thanks bro, yea my buddy does all my work from the engine to the body he has been working on mustangs for over 20 years. i know a little but i am no grese monkey.

[HMUSN]

shut your car off.

Don't start it again until you get a tune for those injectors.

your doing more damage to your motor than you think right now.

[gsjohnson]

Originally Posted by HMUSN shut your car off. Don't start it again until you get a tune for those injectors. your doing more damage to your motor than you think right now.

+1

[ChrisJ]

Put the stock maf and injectors in the car until you get the blower installed...

[mjkids]

Originally Posted by ChrisJ Put the stock maf and injectors in the car until you get the blower installed...

i agree with that

[hardhitter]

Damn I only drove it up and down the street so I hope I didn't do any damage. It's on a 99 gt and the pump didn't come with a basket so I just changed it into the Mustang basket like the instructions said. Thanks for the help and I'll be changing out the injectors and maf today before starting it. I meant that the MAF is calibrated for 42lb injectors.

[HMUSN]

yea.. you can do A LOT of damage that way man..

your running way too rich. what happens it the all that extra gas it washing off the oil on your pistons.
once it washes enough oil off your engine seizes.

[gsjohnson]

Originally Posted by hardhitter Damn I only drove it up and down the street so I hope I didn't do any damage. It's on a 99 gt and the pump didn't come with a basket so I just changed it into the Mustang basket like the instructions said. Thanks for the help and I'll be changing out the injectors and maf today before starting it. I meant that the MAF is calibrated for 42lb injectors.

Just curious, but you cannot buy the pump seperately from Ford. So?

[hardhitter]

Originally Posted by gsjohnson Just curious, but you cannot buy the pump seperately from Ford. So?

I'm not sure what you're asking.

[HMUSN]

he is asking if you bought just the pump from somewhere other than ford because Ford
won't sell you just the pump. you need to buy the basket as well.

[hardhitter]

Originally Posted by HMUSN he is asking if you bought just the pump from somewhere other than ford because Ford won't sell you just the pump. you need to buy the basket as well.

I bought it on ebay. It went into the stock basket with no problems so why do I need another one?