Coldstart idle issue
The problem is that when the car is parked esp outside in cold( rather not so cold also) for a long period then the car wont simply start.
the initial ignition is immediate but after one or two revs it pick up like its very weak (lets say at 20% power), it starts shaking everything, the dashboard, the engine compartment all gets punched
the rpm reading is also very low (about 600) . when i depress the pedal the car stalls
immdediately.
Then when i give it a crank, crank after cranks, it just wont start.
and if it does start the same symptoms.
but sometimes if a press the pedal very very carefully , it picks up speed but with
jerky way and the problem fades away. now when the engine is warm. There is absolutely no issue.
Initially i suspected IAC valve as it seemed broken and stuck, i replaced with a brand new
orinal one. then i felt the same problem for the first start. i then did ecm reset and idle lean procedure, then it felt like the engine is very happy and every thing was ok. i wAS INITIALLY HAPPY that the prob is gone.
But now after a long period i started the car and it has the same prob, the same problem repeated.
I have tried to explain in detail so as to get expert advice from u guys
regards