Ck 4g15 dohc help needed

[judej08]

Having a problem with the 4g15 dohc after driving for a period of time coming to a traffic light or stop car would have an acceleration surge when driving ...car idles fine problem seems worst and occurs faster if ac is on a hot day . Switch off car to cool dwn and car wud run little better
Changed spark plugs and wires
Distributor
service injectors
O2 sensor
...any help would be appreciated

[trini iceman]

It acts up when it warms up? It stalls? What's the condition of the Throttle body?

[judej08]

Yea only when warm n running for a lil while.. tb serviced also

[trini iceman]

It stalls?

[judej08]

No it dont stall will jus stutter n stumble but never dies

[trini iceman]

Hard starts? Battery connections good? Would it do the same if you are stationary and revving? What happens at WOT?

[judej08]

Yea batter good no hard start ..sometimes at stationary it will choke if sudden reving and choke on acceleration..would hav to mash the pedal slowly for smooth rev

[trini iceman]

This is cable Throttle? You getting good spark (fresh plugs and wires). What about fuel? I can't help but think that throttle falling off. Why was the o2 changed, did it read dead?