Car is stumbling

[SVOconvLX85]

Does anyone know why my car kind of bogs down when I step on the gas pedal too far? It never was this bad but it used to do it only when I floored it too far to the floor. But now it does it when I come off of a stop sign and it seems like the car gets overwhelmed and bogs it self down. Or when I am going down the road and I have to kind of ease into the pedal to go fast. I have new plugs and wires, all motorcraft and the cap and rotor isn’t that old and that is Borg Warner. I was wondering if it could be my computer because it has a dent in it from a previous wreck but it still throws codes. I have the stock PJ computer and I am also going to put in the La3 when I get the chance. Or could it be fuel related. I have the stock SVO pumps on the car. What are those rated at? (lph) Would it be possible to get a 255lph pump and delete the frame mounted one and just have one in tank pump to control everything if it turned out to be fuel related? Thanks for any ideas

 

[89' RICE COOKER]

check the fuel system. sounds to me like maybe a leaky injector, what kinda gas milage are you getting?

 

[Stinger]

check the TPS voltage...

 

[SVOconvLX85]

TPS voltage is good and I have brand new Motorcraft plugs and wires. It seems like my fuel system is getting weak and not able to supply me with fuel when I call for it. Timing is set correctly and everything appears to be correct on the motor

 

[ShaneD1980]

you might have a boost leak.

 

[SVOconvLX85]

But it only does it when I mash on the pedal. It doesn't do it when I gradually increase the throttle

 

[Pro-Hawk]

But it only does it when I mash on the pedal. It doesn't do it when I gradually increase the throttle

Have you ran a "Key on" "Key off" code check? If so what codes are you getting?

Have you checked for vaccum leaks? dumb question I know but that is what always gets me

By chance are you using green top injectors?

 

[SVOconvLX85]

No my SVO came with the brown tops and one of those was shooting a jet stream out while the others were doing the right thing, so I got some of those Tomco flat top black 35 pounders. They say they are usually the replacements for the stock injectors and my car idles fine since I changed the injectors. It has never idled that great since I fixed the problem

 

[Pro-Hawk]

No my SVO came with the brown tops and one of those was shooting a jet stream out while the others were doing the right thing, so I got some of those Tomco flat top black 35 pounders. They say they are usually the replacements for the stock injectors and my car idles fine since I changed the injectors. It has never idled that great since I fixed the problem

So you saying when you bought this car new it came with a set of brown top 35lb injectors with a PJ EEC thats not calibrated for them Why didn't you take it back to the dealer and ask for the correct injector size

 

[SVOconvLX85]

Sorry I'm running two posts here but I didn't think that the two probems could be connected but they might be.

 

[SVOconvLX85]

Well everyone, I'm switching to my LA3 that I have from a junkyard and solve my problems. It won't be hard since I already have the bigger VAF sensor on there so all I need to do is add the ACT sensor. Thanks for the help