moddbox supercharger kit troubles

[scotts90ranger]

The code reader can read the short and the long ratios. I just don't know what would be normal and what would be expected

Anything above about 20% is going to be questionable.

 

[maindk]

is it pinging?

No pinging

 

[maindk]

Short term fuel trim bank 1 -3.1%
Long term fuel trim bank 1 24.2%
Short term fuel trim bank 2 .8%
Long term fuel trim bank 2 25%
Air flow rate from MAS .78lbs/min

 

[maindk]

Short term fuel trim bank 1 -3.1%
Long term fuel trim bank 1 24.2%
Short term fuel trim bank 2 .8%
Long term fuel trim bank 2 25%
Air flow rate from MAS .78lbs/min

Warmed up it's
-.8-.8
21.1
3.9
25

 

[bobbywalter]

check the pump install, make sure its not bypassing. and filter. and pressure and volume.

 

[maindk]

check the pump install, make sure its not bypassing. and filter. and pressure and volume.

Gotta run to pick up a fuel pressure tester. Send results when I get it

 

[maindk]

check the pump install, make sure its not bypassing. and filter. and pressure and volume.

Fuel pressure gauge says 45psi one turned and 58psi while running. The volume is supposed to be the moddbox one at 255 lph

 

[bobbywalter]

the plugs need read for sure.

58 psi is solid...if it stays that way under load then for sure i would suspect some fouling possibly. did you get any coolant in the exhaust?

 

[maindk]

No coolant in the exhaust. Far as I can tell. When you say read the plugs. Pull them out and see if it's either black or white?

 

[bobbywalter]

No coolant in the exhaust. Far as I can tell. When you say read the plugs. Pull them out and see if it's either black or white?

yes. when you are pushing air you want to regularly inspect the plugs.

if there was some blockage in the exhaust or something loose or open in the egr ect you can get some issues.. or fuel restriction. sticky or plugged injectors ect.

 

[Roert42]

1. The mod box intake is installed with RTF, so, too much/ too little could cause issues/

2. The mod box fuel pump is low quality. Looks like you already checked good pressure under load.

 

[maindk]

Sry, it been a minute since i responded to this forum. I took the supercharger kit off for now to stock and binned the SC project. When i put it back to stock. it was having idle issues. Low and behold. I replaced the IAC with a cheapy cheap and i suspect that was cause of all my problems when i took off the SC kit. But for now I binned the SC idea. Im pretty sure the weird lean issue was caused by that but i dont want to install that stuff back on just yet. Until i get more stuff for it. like a x4 programmer and bigger injectors and a new maf. I want to tune it later. Thank you for your help.

edit: WHen i put the SC kit on, I replaced all the intake sensors. But i went cheap. When i put it back to stock. I was idle having issues. till i blasted the parts cannon and replaced everything with OEM. Injectors, IAC, EGR.