No acceleration and p0303 code
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Member
Joined: Dec 2021
Posts: 44
From: Atlanta GA
@tbearfit How'd you settle on the MAF?
Member
Joined: Oct 2017
Posts: 119
From: Ontario
Just adding this - I had a similar issue a couple years ago - very little power, basically couldn't go more than 35-40 mph on flat and 10mph if lucky up a hill. Honda dealer originally diagnosed as fuel injectors and replaced all. Called just before I left to pick up to say 'whoops, that didn't fix it'. They screwed around some more and it ended up being the PCM which had to be replaced. Very lucky for me was still 3 months left on my power train coverage. They ended up not charging for the fuel injectors but I did pay like a $200 (mis)diagnosis charge.
generally on these cars when an injector goes it shorts out the power mosfet driver for that injector and the ecu would need to be replaced along with the injector. I have ran into this multiple times, I can now repair the ecu’s by replacing the power mosfets inside the ecu. If the ecu is not repaired when the injectors are replaced the injector WILL fail again. The ecm can easily be tested for this failure I’ve posted about it multiple times.
Member
Joined: Oct 2017
Posts: 119
From: Ontario
https://www.fitfreak.net/forums/2nd-...ml#post1463531
here is a link to the video of how and where the mosfets are replaced. Any general electrical repair guy can do it.
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