I just installed a TD04H turbo on my Honda CRX which I am only running 3 pounds of boost atm and I have a ECU error code (3) which is the MAP sensor. I'm just wondering, do I have to get a new MAP sensor and if so what should I look for?
Also another question, I have a 93 Honda Civic parts car which had the exact same turbo kit on it, and it has a MAP sensor on the motor...will that MAP sensor work? Or is there a specific one I have to get for a Honda CRX?
How many psi are you boosting?
Did you add check valves on the vacuum line going to the map sensor?
Is your ECU chipped with a turbo program?
The stock MAP is -CAPABLE- of reading 9~11psi boost. The problem is that the stock ECU doesn't understand when the MAP sends boost info so it throws a code.
Adding in-line vacuum check valves hides the boost from the MAP and you won't get an ECU light/code. you then need to adjust fuel for the boost by using an FMU.
A chipped ECU with a turbo program on it is far better as it allows the ECU to use the boost information from the MAP sensor and then make fuel adjustments.
All of my posts should be considered for being made into a sticky.
No I didn't add a check valve, I'm thinking of ordering one right now. I am only running 4 PSI for now until I do a few extra things. Also, I do not have my ECU chipped. Also, what ratio FMU should I use?
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