|
You could have a couple things going on that could cause this.
Fuel pressure regulator.
The regulator could be leaking into the engine (through the vacum line) the excess fuel could be causing a rich condition that will result in a temorary rough idle condition OR the regulator could be causing a lean condition because there is not enough fuel at startup.
Fuel condition.
You may have contaminants in your fuel (water or dirt) that are blocking the flow of fuel through the injectors.
Throttle Body.
A build up of dirt on your throttle body (plate and bore) can cause some unwanted running conditions during cold start.
Hope this helps
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again?
Got all the certifications
25 years ASE Certified Master Technician
GM WCT
Yea..I work at a DEALERSHIP....got a problem with that?
|