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Discussion Starter #1
can anybody help me
Im running a h22a4 with 290cc injectors off a p28 ecu. With the stock chip. The car runs strong with 90psi to the rail but i know it is not right to have the pressure that high. With the p28 chipped for the h22 it dosent start without heavy modfication on the air fuel maps (increasing both air&fuel) both by 40% but runs at proper fuel pressure.

The question
Did i need to run a resistor box on the 290cc injector's
what type of injectos are these peak&hold saterurated? low impedance or high?
what type of injectors is the p28 ecu set up for?

Please any help would be great
 

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I thought all the Prelude injectors were peak & hold (low impedance) but maybe not, because a P28 is set up for saturated (high impedance) injectors. If you have peak & hold injectors on a P28 and no resistor box, they won't even open. The ECU won't ground out the injectors if resistance is too low.
 
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