Check the hoses - especially all the little 10mm hoses that connect vacuum pipes, etc.
There is a device in the throttle body called an Idle Stabilisation Valve - they get gummed up, especially on such an old car, and with NZ's low-petroleum fuel - lots of additives in NZ gas.
They are easy enough to clean - look for a lead plugged into the throttle body near the butterfly - you can unclip it and pull it out complete - they are usually about 15cm long, by about 4cm wide.
Spray it liberally with carb cleaner and make sure it can move freely. If not, a wrecker is the best bet - they are pricey new.
Good luck.
Testimonial: "Hey Zoot, thanks for that, its great advice but I have one problem.. no idea what an Idle Stab. Valve looks like. see my comment on orig ques. "
586 views
Usually answered in minutes!
Hey Zoot, thank you very much for that, I would love to check the ISV out but I have no idea where it is...
I'll try describe what I am looking at, so I have the opening to the intake (have removes the air intake pipe from the air filter. so I have a bare intake, inside that I can see a big butterfly, closest to me is the entire throttle linkage, the wire and the bits that open and close the butter fly, to the left of that is an electrical plug into something I dont know what it is.. whatever it is plugged into has 2 bolts and looks like it can be removed... on the opposit side of the intake manifold/throttle body whatever it is called is a box with electrical connection, this one is labelled throttle sensor.. apart from that I cannot see anything else. certainly no other valve stuff that I can unclip and pull out :( its very hard as I dont have a workshop manual and dont know what the part actually looks like.. so I could be staring at it and never know..
×