Figge
Recruit
- Joined
- Mar 18, 2014
- Messages
- 1
Hello.
I'm a boat mecanic in Sweden. Please try to understand my horrible english.
I have a customer who bought an VP 8,1 engine from another dealer. (Thank god I did'nt deliver it). This engine have too low and unreliable idle. Aprox 500 rpm.
I have checked:
The compression. Ok on all 8 cyl.
Fuel pressure. Ok.
Fuel in fuel pressure control vacuum line. It's dry.
Top rpm. Ok.
Condision of the fuel. Ok. The owner uses the boat.
The ECM soft were was already up to date.
Electrical connections.
Trubel codes. None.
I have changed (on cost of the dealer who delivered the engine):
IAC valve.
TPS
MAP sensor
Sparkplugs.
How do I check the IAC function and circuits?
Any sudiestions?
Best regards Figge.
I'm a boat mecanic in Sweden. Please try to understand my horrible english.
I have a customer who bought an VP 8,1 engine from another dealer. (Thank god I did'nt deliver it). This engine have too low and unreliable idle. Aprox 500 rpm.
I have checked:
The compression. Ok on all 8 cyl.
Fuel pressure. Ok.
Fuel in fuel pressure control vacuum line. It's dry.
Top rpm. Ok.
Condision of the fuel. Ok. The owner uses the boat.
The ECM soft were was already up to date.
Electrical connections.
Trubel codes. None.
I have changed (on cost of the dealer who delivered the engine):
IAC valve.
TPS
MAP sensor
Sparkplugs.
How do I check the IAC function and circuits?
Any sudiestions?
Best regards Figge.