GQ runing really ruff on start up (mising 4 cylinders)
Posted: Fri Apr 18, 2008 8:59 pm
hi i have a 92 gq 4.2ltr petrol carb with eletric fuel pump ( new works good) run only on 2 cylinders first start up in morning (cold) has been getting worse over last 4 or so weeks as it warms up (few mins) it slowly works it's way threw cylinders untill fireing on all cyl's then it smooth running till next morning any ideas would be great things i have done so far
1 has good spark at coil lead
2 new points and condencer 2 months ago
3 new plugs 2 months ago
4 spark at end of plug lead (haven't pulled plug yet as only stop running tonight (night off work yeepee)
5 not sure on fuel into cylinder but i have to hold throtle wide open till it fires on three or four cylinders other wise it dies
just seems wierd to me that as it warms up it runs better
thanks in advance
TIM
1 has good spark at coil lead
2 new points and condencer 2 months ago
3 new plugs 2 months ago
4 spark at end of plug lead (haven't pulled plug yet as only stop running tonight (night off work yeepee)
5 not sure on fuel into cylinder but i have to hold throtle wide open till it fires on three or four cylinders other wise it dies
just seems wierd to me that as it warms up it runs better
thanks in advance
TIM