My h22a is running now but is giving me 3 codes. MAP sensor and TPS sensor which i'll check later. But the vtec pressure valve (code 22) may be an issure for me. I have no experience workign with vtec stuff so any help on what I should do would be great.


I've read I should check my oil level and i'll also check my wiring to the ecu. any other suggestions?

 

YES. your map and tps connectors are crossed. check it out.

 

what do u mean crossed? like the they're both plugged into the other's sensor? or they're crossed going into the e.c.m.?

 

We have been in the process, the past few months, of getting our 96 SI H22a swapped. We researched the swap here on HT, bought the parts and talked to our mechanic to do it.
So today, I get a text saying they got it running with the exeption of VTEC and some stupid thing with the clutch. He said, "It runs, but it runs but badly." So on my lunch break, I went to check it out.
In the back of my head I was thinking "swapped TPS and MAP Sensors." I remember, when I was researching the swap, people saying to watch out for that. I had even been saying all week long to the mechanic to beware that the TPS and MAP connectors are the same and can easily get mixed up since they are so close to each other. I jumped the service connector to check CELs and sure enough there was a "5" MAP and "21" VTEC SOL. Seeing the MAP made me giggle a little because I warned him. Popped the hood, switched the connectors, and bam.... fired up and idled smooth. It was completely different running engine. So to answer your question yes, they are easy to switch around. Good Luck!!!

 

That one is easy to remember. It was one of the "bugs" at Honda's TOP 20 TECHNICIAN competition that was held in Denver a few years back. Even Honda knew about it! Those boogers!

 

Same thing happened to me except I got the Engine Coolant Temp sensor B connector mixed up with my vtec pressure switch and it was throwing a CEL(22). So I then checked the color wiring from the ECU and the color wiring at the pressure switch and for sure its mixed up. lol So I swapped them back to place and BAM! no more CEL. Vtec kicks in like there's no tomorrow.

 

Good to know! Thanks!