can some one possibly tell me what these things are and what they do? this is kinda under the intake piping and right next to the battery..



this is tucked up kinda behind the cruise control. to the far left, behind the intake mani.

 

The top box is the air intake solenoid. The bottom appears to be the vacuum control box. Without knowing exactly what kind of car it is or what engine it is, it's hard to know for sure.

 

Sorry I didn't even think bout putting that, it's a 98 prelude.. base model.

 

Also would it be okay to remove both of these?

 

You can remove the intake resonator chamber box but you MUST leave the solenoid screwed to it and plugged in to avoid the ECU throwing a code for it. The device on the firewall is part of the EGR system... again, if you remove it... you will get EGR related codes. Now, if you convert back to an OBD-1 ECU and add a tunable solution, neither device would be necessary and both could be removed.

 

I'm boosted, and have hondata s300 with a p28 ecu.... so yea... I'm trying to get rid of abs, and clean up the engine bay of ever every thing I don't need. But thank you.!

 

P28 with S300... yank 'em out !!! Good to go.