Been working on the car all day long its a y8 i think from like a 99. IT is a crx has rc injectors, skunk IM, crower head. The engine is built. runs rough and is throwing code 10. not sure but when you get going it acts like its hitting a rev limiter at 3k rpm and wont go anywhere until you punch the gas then it will go past it. I cant figure it out plz help.;

 

stock ecu?

 

yes with vtec controller

 

sounds like you need a tune. a vtec controller is not going to cut it. the ecu is making it run uber rich due to it expecting stock 240cc injectors to be there, and you are running something larger.

 

pressure on gauge stays at 40psi at fuel filter

 

we will just put the stock injectors back in then. Put them back in when he gets his obd1 set up

 

Still need help it is doing it all the time now. Could it be the IACV or the FITV?

 

If you are throwing code 10 thats IAT (Intake air temp sensor) since you have a y8 running on a z6 ECU, you have to add the sensor to either the intake manifold or on your piping somewhere.

As mentioned above, you need a tune thats why the car is running rough...it's in limp mode thats why it only revs to 3k. Order a basemap from phearable.net or Xenocron and chip your ECU so you can run there car.

I would not recommend running your car unless you want to risk blowing up the motor because tuning has been completed.

 

the car has been running fine for a year now. put the bigger injectors in a month ago and now this past sunday it started acting up.

 

Because you are flooding your motor with the bigger injectors. Did you upgrade from the stock injectors?

How was the car tuned?

 

yes and never tuned

 

Theres the problem. You Cant just throw bigger injectors on it and not have a tune because the ECU still wants to put out the same amount of fuel it would for stock injectors.

 

Im sure he was getting absolutely terrible gas milage.

Take the car and get it tuned for the injectors, if not you will damage it, if its not already.

 

ok he removed the intake and cleaned everything. Still doing the same thing..... Still pondered.

 

i had a car do that, the TPS was broken inside. but you would probably get a tps code if that was your problem.