I have a '94 accord with a '95 Prelude vetch 2.2. The swap was done about 2 months ago and has run excellent untill recently. Now it idles somewhat rough, misses when accelerating and the engine light comes on as soon as it starts to warm up. I was told it sounded like an o2 sensor, so spent $220.00 and put one in. No change . Took it to the shop and had a diagnostics run, came back code #12, "egr system problem" was told to replace the egr valve, spent $270.00 and put it in. No change . I've got over $12000.00 into this car already, what do I try next?

 

Not that it matters, but it's vtec not vtech like the phone. You may want to change your screen name too....

Have your pulled the codes from your ecu?