i think i may have blown my engine could anybody lend me a compression tester for a fd engine?
background info is just put a little fuel in and gone over mountain not great speed but then felt what i think is detonation then no turbo and idle was very eratic.
air temp was around 20 odd degrees water temp around 82-85 degrees and injector duty was around 80-85%.
what i think was strange is last year compression test was 9 + so pip said that is a good engine.
hopefully i wont need a rebuild but i am fearing the worst.
Obviously any help would be most gratefully appreciated.
When I was wondering about mine Carl got me to take the plugs out and turn the engine over without the ecu on.
Listen to the noise....if it is a rhythmic pattern then thats ok, otherwise if you get a delay then one of the tips has gone
cheers for that but how do u turn off the ecu
pull the EGI fuse - that stops it pumping fuel and firing etc....
did the ECU go into limp mode ??
Check the vac pipe to the map sensor john
i am going to get it on ramps in the morning and check the compression by
1.taking out the top 2 spark plugs and having a listen.
2.then having a look at the vacuum pipes on the sensor kev is there anyway you could shed some light as exactly where these are?
Also what could it mean if there is a fair amount of smell of fuel when the engine is running?
cheers again everyone
fingers crossed
The map sensor is mounted to the n/s of the car on the engine bulkhead. Its mounted on a steel bracket is black plastic about an 30x35mm in size with a single vac pipe and a cable and plug going to it, i\'ve no pics of one but someone will nodoubt post one.
Kevin
well guys i would like to take this oppurtunity tothank you all for your help as i have now fixed my car to what i believe is rather embarrassing but still it has sorted the car out and was a grinder friendly price.
if you are all desperate to know it was a pipe that had came off behind the plenum (boost sensor)
thanks again for your help
A drop of superglue and cable tie cures that problem
Kevin
map sensor