Help?? Please??

[Ek4doorkid]

Hey I put a jdm b20 swap I picked up for my 99 civic ex sedan I doesn't wanna rev pass 4000rpm think I did everything rite have a obd2b to obd1 ecu jumper harness running running a p75 ecu I have a 2000 crv dizzy on it tried change a couple throttle body I had laying around with good map and tps sensor also change iac sensor and still does the same kinda lost don't have any idea what to do.

[StockieSi]

Ur in limp mode see if u have any codes

[Ek4doorkid]

Help???please???.

What does limp mode mean and I read the codes and it said iat sensor came on 02sensor also try changing that sensor and does the same

[B16eg6]

text me 2032158996 its most likely something simple

[StockieSi]

Limp mode is when the ecu puts the car is safe mode so u dont do damage:: so u replaced the 02? Or iat?

[Ek4doorkid]

I change the iat yesterday I tried 2 I had laying around and gonna change the 02 sensor today when I get out of school

[StockieSi]

Start with new parts dont just toss on what ever u have laying around

[POS civic]

How's your wire harness look? Check the ecu connectors and the jumper harness for pins pulled out or filled with debris. If the harness has been disconnected/reconnected many times it can become weak and wires may not contact where they're supposed to. Where'd you get the ecu? Has it been chipped?

[Ek4doorkid]

Got the ecu from my brother swap cam out a running car that was driving perfectly fine ecu a stock p75 car was driving perfectly fine with my single think I'm gonna just put it back tried everything I know and still doesn't wanna work and my wire harness is good

[Slicks]

Just because this situation happens a lot...make sure your TPS and MAP plugs aren't switched with each other because they do utilize the same plug type.