Hi I have a
2001 Honda Accord Coupe,
4 Cyl,
Auto, with California emissions.

Recently I started to get the P1456 code, after it came back the second time around I checked around and found the code to be one of the following:

• Gas Cover is loose (not so)
• EVAP control unit
• Manufacturer Controlled Auxilary Emissions Control System

So I brought my car to the local mechanic specializing in engines and trans. After checking the car with his OBDII tool he received almost 3 pages of possible causes for the problem. He went through the items on the list isolating it to a few components and placed the order with HONDA expaining the code and the parts he needs. Honda replied with a fax saying that this particular model DOES NOT have the problem with the relays that he found, but rather the ECU is faulty and needs to be replaced...

Now that's all fun and games except for the cost of the unit, from what i was told, the California emissions ECU will cost me about $800-$1000. According to the manual the car has the warranty for the ECU for 8years or 80,000 miles (whichever comes first). What is funny is that I am at 79,495 miles.

Does anyone have any advice for me, has anyone else had experience with ECU problems, and such CLOSE CALL break downs. The reason i ask is my father has an AUDI and the dealer did everything they could to not repair the car. All feedback is appreciated...

thanks,
~Artem

 

Are you sure you've been properly tighteneing the gas cap every time?

I will post the P1456 troubleshooting procedure on Monday for you.

What do you mean 'close call breakdowns'

 

CLOSE CALL BREAKDOWN - A car problem that happens very close to the warranty expiration. Example above: my car is at 79,495 the warranty for the part expires 80,000

As far as the gas cap conserned, yes it's nice and tight..

 

That might work if it was actually a breakdown, but what about the other question I asked?

 

i had the same code, it was the EVAP canister man, u can buy the entire box looking thing, luckily friend worked at honda and i got a great price, it will cost $300 for parts alone for you. I paid less then $100 =) it maynot be the ECU. i got the code checked out by honda technicians

 

well its its the ECU that should be covered under the emissions warranty.
After all its up to 80k and you have less than 80k.
obviously they should cover it. Honda that is