Regularmaintinence
New Member
- Joined
- Apr 8, 2024
- Messages
- 9
- Reaction score
- 0
- Points
- 1
- Age
- 49
- Location
- South Australia
- Members Ride
- Vt commodore V6 3.8l base model
Hi just looking for some advice.
VT V6 3.8l
idles great, runs great.
PROBLEM~ INTERMITTENT while idling (in gear) at traffic lights, car seems to be trying to stall. Occasionally while driving (any speed) car does the same.
DOES NOT happen while idling in park (just flushed radiator idled for about an hour in park no problem)
ONLY happens when in gear.
the car was intermittently stalling out completely, but has improved a lot but still intermittently (tries) to stall.
improvement after:
-changed oil pressure switch
-removed and cleaned throttle body
-removed and cleaned MAF (mass air senso)
-adjusted (factory) throttle screw (stepper) on throttle body
-new plugs
-new leads
OBD results - the ONLY error message was mass air flow sensor “out of range”
car has mods
cold air intake
headers
3.5 inch exhaust
(RECAP)
car runs great for days at a time
occasional intermittent episode of “trying to stall” but recovering“
this happens while idling at lights
this also happens while driving at any speed.
Ill be doing 80kph for example and car will slightly cut out, recover for a few seconds then run normal.
-used to stall out completely before doing the “things“ I mentioned
now it just “tries” to stall but recovers .
problem can go away completely for a week or two (200-300kms)
seems to be worse with “air conditioning on”
(oddly) idle speed stays the same weather air con is on or off about 800RPM
SHOULD go a bit higher with air conditioning on surely?
again car is fine 90% of the time issue is intermittent and no apparent pattern.
VT V6 3.8l
idles great, runs great.
PROBLEM~ INTERMITTENT while idling (in gear) at traffic lights, car seems to be trying to stall. Occasionally while driving (any speed) car does the same.
DOES NOT happen while idling in park (just flushed radiator idled for about an hour in park no problem)
ONLY happens when in gear.
the car was intermittently stalling out completely, but has improved a lot but still intermittently (tries) to stall.
improvement after:
-changed oil pressure switch
-removed and cleaned throttle body
-removed and cleaned MAF (mass air senso)
-adjusted (factory) throttle screw (stepper) on throttle body
-new plugs
-new leads
OBD results - the ONLY error message was mass air flow sensor “out of range”
car has mods
cold air intake
headers
3.5 inch exhaust
(RECAP)
car runs great for days at a time
occasional intermittent episode of “trying to stall” but recovering“
this happens while idling at lights
this also happens while driving at any speed.
Ill be doing 80kph for example and car will slightly cut out, recover for a few seconds then run normal.
-used to stall out completely before doing the “things“ I mentioned
now it just “tries” to stall but recovers .
problem can go away completely for a week or two (200-300kms)
seems to be worse with “air conditioning on”
(oddly) idle speed stays the same weather air con is on or off about 800RPM
SHOULD go a bit higher with air conditioning on surely?
again car is fine 90% of the time issue is intermittent and no apparent pattern.