Anyone got any bright ideas?

[Dannyboy]

following Matts spin at Rockingham the car was running incredibly roughly. I aborted my final run and bought the car home.

k-series 1800 supersport-EU1- stepper motor TB so very early car. 

• at home the symptoms were:
• would start but wouldn’t idle
• it was running incredibly rich - I couldn’t be in the garage with it running
• plugs sooty.

To start checking the fault i’ve Gone through the following

• i’ve started With CAM timing- set that to 150thou inlet, 125 exhaust as per DVA’s recommendation.
•  Checked compression- all roughly the same.
• changed the TB for a spare and cleaned the old one.
• removed injectors
• checked wiring continuity on all wiring / sensors back to the ECU - only the inlet vacuum (green plug) didn’t give me continuity- I will address that. 
• Put in more fuel
• checked fuel pump primes, checked injectors all operate with engine turning over.

starting- with starter cables attached to my road car- ensuring decent voltage

the car starts, but won’t rev and dies after 5-10 seconds. 

I’ve tried swapping TB’s back.

Anyone have any ideas on what to check next? I’m more than a little stuck. 

Dan 

 

 

 

 

 

[Mark Durrant]

Dan

Try disconnecting the Lamda and see if this helps. Failing that disconnect the water temp sensor for the ECU.

[Dannyboy]

No lambda Mark.. pre cat on 93 car. 

Will try water temp sender 

[Graham Howard]

Not familiar with the EU1 engine but that that cam timing seems extreme for a supersport. 

Shouldn't it be more like 60/45 thou?

Graham 

[Dannyboy]

I shall do further research and potentially adjust Graham 

[Shaun_E]

Spark? Have you checked each spark plug while running? If you have the block mounted coil then I've been through a few of those until I went wasted spark.