Limp Mode Diagnosis (KA24DE)

[Karlitos]

So a little bit of background, the engine blew up at the track, so I bought one and the seller didnt tell me there was a blown HG, so that got replaced and Im trying to figure out what's going on now.

While I was doing the swap, I did some cleaning up of the engine bay, including getting rid of EGR since I had a code saying the canister wasn't functioning. Instead of dealing with it, I got rid of it, and am now throwing OBD2 code p1400, which is for EGR. The car is in limp mode and wont rev past 5000 RPM. It also sputters/bogs when putting my foot down, the it goes. It idles just fine though.

After doing some searching, I bought 100kΩ .25W resistors. According to that research, it goes into a plug between intake ports 2 and 3 that look like this http://img9.imageshack.us/img9/9597/20120613131803457.jpg.
But why are they both connected, if one goes to the EGR, which is now gone? Im going to guess, the resistor goes on the one that leads back to the harness?

My other question is, if anyone recognizes this plug in the back by cyl 4, intake side. It looks like it went into the EGR, so Im not sure. http://img651.imageshack.us/img651/4233/20120613131820802.jpg

[Karlitos]

No help on ID'ing that blue plug?

The resistor also didnt turn off the CEL. I disconnected the battery for an hour to reset it, and the CEL turned on immediately.

[Karlitos]

Had a friend delete codes, took it out for a test drive and it still hit a limiter at a little past 5k. There was no CEL so there is no way it can be in limp mode. Any help on that one?

[Memberofthe600hpkaclub]

That plug is for a emmisions sensor deally...not needed...clean your maf...or swap with a known good

[Tantwoforty]

I had this happen to my ka
Check your timing and ignition components (plugs,wires,cap,rotor,coil)
Check your injector orings
Check your fuel pressure and ensure you have gas in your tank
Clean your maf or switch it out
I dont think the egr will limit you, maybe knock sensor, fuel pressure, timing..
idk hope you find it

[Karlitos]

Thanks for the info about the plug, member...

I had this happen to my ka
Check your timing and ignition components (plugs,wires,cap,rotor,coil)
Check your injector orings
Check your fuel pressure and ensure you have gas in your tank
Clean your maf or switch it out
I dont think the egr will limit you, maybe knock sensor, fuel pressure, timing..
idk hope you find it

I barely checked this and its getting late for neighbors, but fuel pressure is fine, and there is definetely gas.
I checked the MAF, and it was clean, cleaned it anyways, and it was the one I had before the blown engine, so it definetely worked.

After doing those it was still bouncing off at 5, but the CEL is back on. Have to wait for my friend to double check if its the same one again. (Only p1400)

Need to check the timing/ignition tomorrow and injectors aswell. Thanks