D4 VVti engine 'mati' on Neutral

[rainorshine]

Dear all,

Please assist on my problem~

Car: caldina ZT
engine: 1AZFSE D4-VVTi

It mati (shut down) suddenly when gear standing on Neutral. It does not shiver also not giving any warning, the engine just snap off. Then after restart the engine, it's back alive like nothing happened.

It only happened once in a blue moon. Maybe once a month, maybe once in a week.

Sent the car to workshop few times, unable to identify problem, cleaned throttle body (happened again after few days), cleaned air flow (happened after 2 weeks) & cleaned manifold (HAPPENED AGAIN! after 1 month+).

Using both Ron 95 or Ron 97 also same.

Any taikor can help me on this?:hmmmm:

 

[huakenny]

edi plug in diagnostic tool to scan? if yes, any codes?

if not, plz scan first

but normally this problem hard to rectify if only happen once or twice sometimes......

 

[kazukimy]

try borrow a new throttle body, normal for toyota's car....macam start stop function pula,lolz

 

[rainorshine]

yup, but no code generated because it can only detect if the diagnostic PC plugged in n the engine snapped off at the same time.

Mechanic also headache because everything seems to be fine after restarting the engine.

---------- Post added at 03:30 PM ---------- 6 hour anti-bump limit - Previous post was at 03:29 PM ----------

try borrow a new throttle body, normal for toyota's car....macam start stop function pula,lolz

tried this before too, swapped throttle from another caldina

 

[kazukimy]

den i oso since u said once awhile, hmm wiring? coz dun think is afm coz usually will show sign of engine dying off

 

[DanzEterna]

suspect your transmission control unit prob, cos when u restart yr engine, the TCU resets....or not....

 

[rainorshine]

suspect your transmission control unit prob, cos when u restart yr engine, the TCU resets....or not....

Hrmmm some mechanic asked me to try borrow another d4 egr to try. :hmmmm: