sorry for being a bit lazy here, somebody just to confirm my logic (two litre)
recently car will fire up on the button , but not keep running, swapped over a couple of idle valves, no difference, needs just a wee tickle of throttle pedal to keep it running, but SWAMBO's idea of a wee tickle is an idle speed of 1500+ rpm!!
I know that the idle valve has a default opening but is it that which is used at starting ?? and then the ECU quickly swaps it around a few degrees to get the modulating postion?
I reckon it could well be the control under the throttle inlet /butterfly, or maybe the wiring to the idle valve, what should it do and I could put a volt meter onto the valve to confirm/deny.
just jury rigged a small loop of steel cable to give me a 'false' throttle stop on the main butterfly just for next few days to see if improves it any
starting but not running,
Moderators: jifflemon, coyote1980, Rachel
starting but not running,
Alan
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
Re: starting but not running,
Could it be a MAP Sensor? I do not know much about the 2.0, but when I got my '88 car it would start and then cut out, when a new MAP Was fitted it started first time. Could that be it?
Current Jobs to do (23/1/22):
Fix Central Locking
Fix drivers side speaker
Annoying Scratching Squeak
Water leaks
Complete Front O/S rebuild
Fix Central Locking
Fix drivers side speaker
Annoying Scratching Squeak
Water leaks
Complete Front O/S rebuild
Re: starting but not running,
good call
I also have one of those spare and an easier swap than the throttle switch!
I remember when teh wee pipe split the car would run OK , but on throttle lift off at a roundabout it would die unless quick with the gear change .. ..
I also have one of those spare and an easier swap than the throttle switch!
I remember when teh wee pipe split the car would run OK , but on throttle lift off at a roundabout it would die unless quick with the gear change .. ..
Alan
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
480 ES 2litre 'Celebration' ? , C30 1.8ES, SS1
Re: starting but not running,
Hope it Helps!
Current Jobs to do (23/1/22):
Fix Central Locking
Fix drivers side speaker
Annoying Scratching Squeak
Water leaks
Complete Front O/S rebuild
Fix Central Locking
Fix drivers side speaker
Annoying Scratching Squeak
Water leaks
Complete Front O/S rebuild
Re: starting but not running,
Worth trying simpler things first like the MAP - any of those items could be your culprit - but my money is on the throttle position sensor . Silly question probably, but is the throttle housing clean inside?
David
David
Current: 1994 480 GT, 1996 460 CD & 1997 440 LE with lots of optional extras & 2007 V50 SE Sport
Previous: Celebration 331 (re-homed with Richard S), Celebration 467 (returned to Martin Mc); Celebration 346 (re-homed with Alan480); Celebration 269 (scrapped abandoned project), Celebration 73 (sold on after 6 years), 1992 ES, 1988 ES - and numerous other non-480 Volvos!
Previous: Celebration 331 (re-homed with Richard S), Celebration 467 (returned to Martin Mc); Celebration 346 (re-homed with Alan480); Celebration 269 (scrapped abandoned project), Celebration 73 (sold on after 6 years), 1992 ES, 1988 ES - and numerous other non-480 Volvos!