bobsbreva750
Just got it firing!
So, I have finally sorted my 2007 Breva-engined kit car conversion to the point where the motor idles and runs pretty well.
I had to totally relocate all the major fuel injection components, instrument panel, ECU and engine connections and make up a new wiring harness. I had to extend the intake manifolds and throttle bodies because of engine mounting problems. Also I had to make a new oil breather because I couldn't fit the OEM Breva airbox into the engine compartment.
What I need some help on is that the motor will not start when cold till after about 3-5 minutes of cranking and working the throttle. When warm the motor will start instantly. I have a Centurion analyzer and have been able to balance the throttle bodies at 3800 rpm's and the idle at 1000 rpm's and further reset the TPS at 3.1. There are a number of other parameters the Centurion displays but how do I know if those numbers are normal? I have the fuel pressure regulator set at 41 psi and no trouble codes appear on the Centurion DTC page.
I do not have a balance tube between the exhaust manifolds because I haven't figured out how and where to fit it in the the increasingly confined engine compartment spaces. I do have the lambda sensor fitted into the right-hand exhaust manifold and the air temperature thermistors and cylinder head temperature sensor connected. It appears that all the sensors are operating and sending data to the the ECU.
The spark plugs are BR8ES as called for in the manual and the coils, injectors and fuel pump seem to be operating correctly when tested with the Centurion. When I try to start the engine when cold it seems to fire but will not sustain ignition. Of course, being in Florida I am not talking about freezing cold, just about 50-60 degrees.
Any and all suggestions will be greatly appreciated. Please refer to a previous post to see a picture of my conversion configuration.
bobsbreva750
I had to totally relocate all the major fuel injection components, instrument panel, ECU and engine connections and make up a new wiring harness. I had to extend the intake manifolds and throttle bodies because of engine mounting problems. Also I had to make a new oil breather because I couldn't fit the OEM Breva airbox into the engine compartment.
What I need some help on is that the motor will not start when cold till after about 3-5 minutes of cranking and working the throttle. When warm the motor will start instantly. I have a Centurion analyzer and have been able to balance the throttle bodies at 3800 rpm's and the idle at 1000 rpm's and further reset the TPS at 3.1. There are a number of other parameters the Centurion displays but how do I know if those numbers are normal? I have the fuel pressure regulator set at 41 psi and no trouble codes appear on the Centurion DTC page.
I do not have a balance tube between the exhaust manifolds because I haven't figured out how and where to fit it in the the increasingly confined engine compartment spaces. I do have the lambda sensor fitted into the right-hand exhaust manifold and the air temperature thermistors and cylinder head temperature sensor connected. It appears that all the sensors are operating and sending data to the the ECU.
The spark plugs are BR8ES as called for in the manual and the coils, injectors and fuel pump seem to be operating correctly when tested with the Centurion. When I try to start the engine when cold it seems to fire but will not sustain ignition. Of course, being in Florida I am not talking about freezing cold, just about 50-60 degrees.
Any and all suggestions will be greatly appreciated. Please refer to a previous post to see a picture of my conversion configuration.
bobsbreva750