went to look at a tt last night. was down on one cyliner. changed plugs and coilpacks no difference. if after doing a compression check (and it proves fine) and changing the PTU and its still not cured i take it the injector could be faulty? or have i over looked something?

 

also, when the engine was hot, there wasnt much pressure in the coolant pipes (could squeeze with my hand) which i thought a little strange? it was also a bitch to start again when warm, so i guess it could be linked to the first problem outlined or a dodgey temp sensor?

 

Any help appreciated.

 

M

yes a dead injector is a possibility, I assume you have thoroughly cleaned out all the electrical connections?

yeah cleaned an inspected what i could clarkey. apparently car has been stood up for a year but was started once a month. Its a 92 jap and looks like the original PTU in it, so im hoping thats the culprit. Times like this is wish i had of bought Consult lol

 

M

Bad hot start sounds like dodgy PTU, could the coolant problem be a jammed thermostat? How hot does the radiator get when the car has been running for a while?

Rad fine, noticed secondary fan come on after the hard start which led me to believe it was the temp sensor. temp gauge sits just around 1/3 of the way, it also pulled really good vacum which led me to think nothing was amiss in the cylinder or head department. will wait on results from a comp test before going any furthur i think...

temp gauge should be bang in the middle at operating temp mate.

clarkey this was after about 10 minutes on idle after cold startup? didnt bother taking it out for a run - couldnt see the point if just running on 5. Though as its been sitting, may as well stick a thermo on the to do list :-)

theres your coolant pressure issue then, its not at full working temp ;)