bomb in airflow

awssubaruls · Post by **awssubaruls** » Sat Mar 22, 2008 9:29 pm

hi

dear all

my car wont start for tow days i dont know why?. anyway i try today to rotate my engine do u know what happin its make feed back air to airflow box like bomb. what this men plase

kind regards

Saskatoon Subaru · Post by **Saskatoon Subaru** » Sat Mar 22, 2008 11:41 pm

what happens when you turn the key, is the engine turning over and just not firing or does it just click?

and i ran you vin# through a decoder to figure what you were driving and your check degit came back invalid just thought i'd tell ya.

awssubaruls · Post by **awssubaruls** » Sun Mar 23, 2008 1:29 am

Saskatoon Subaru wrote:what happens when you turn the key, is the engine turning over and just not firing or does it just click?

and i ran you vin# through a decoder to figure what you were driving and your check degit came back invalid just thought i'd tell ya.

sir
its just engine turning over without running while that my engine bush air strongly to airflowbox throug the thretlbody i mean inverse opreation.i hope u godt my point
thanks

vrg3 · Post by **vrg3** » Sun Mar 23, 2008 3:32 am

It sounds like your engine backfired. That typically happens due to improper ignition timing or just an ignition system in poor tune.

When did you last replace the spark plugs and wires?

Does your engine have a distributor?

ericem · Post by **ericem** » Mon Mar 24, 2008 10:11 pm

His car is just like ours. Like a Legacy L wagon. Just has a EJ20 motor. I am thinking it was the timing belt that broke or skipped because of a bad tensioner or pulley. He has a cam and crank sensor code and alot of others. So could also be a ground issue.

japanesecowboy14 · Post by **japanesecowboy14** » Mon Jan 05, 2009 12:36 am

I had this happen on an old justy once.... You mean that there is air BLOWING through your intake instead of sucking it in? Sounds like either your timing belt broke (Really hyper sounding crank) or you have a stuck valve that is holding the intake valve open, maybe? My only guess is that the exaust stroke is pushing air out the intake manifold because the timing is off or one of the aformentioned problems

green91 · Post by **green91** » Mon Jan 05, 2009 12:42 am

Ive seen a bad MAF cause a backfire through the intake also.

japanesecowboy14 · Post by **japanesecowboy14** » Mon Jan 05, 2009 1:06 am

Really? Well I guess if it tells the motor that less air is passing that what really is, maybe.. there would have to be something else though, resulting in reverse airflow

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bomb in airflow

bomb in airflow