[MR2] 92 mkii engine dieing when hitting bumps under load and atspeed

[Aaron Willis]

Getting even more basic here, have you verified that the battery
terminals are clean and tight and the cables are in good shape?  I can't
count the number of times that's caused people problems.  It gave me the
exact symptom that Sean is experiencing on an old Corolla I bought many
years ago.


Aaron Willis, Parts Dept. - Lithia Toyota Scion of Springfield, OR -
(541)736-3221
Shop and order online at http://www.LithiaToyotaParts.com
Sponsor: http://www.mr2oc.com/ http://www.mr2.com/
http://www.celicatech.com/


-----Original Message-----
From: mr2-bounces at mr2.com [mailto:mr2-bounces at mr2.com] On Behalf Of
Joseph Obernberger
Sent: Sunday, March 20, 2011 8:31 PM
To: Donald Chalfant
Cc: mr2 at mr2.com; ptbarnum at nc.rr.com
Subject: Re: [MR2] 92 mkii engine dieing when hitting bumps under load
and atspeed

I would guess it's electrical in nature.  Check to see if you have any 
engine codes set.  Could be a short somewhere - check the wires to the 
distributor as they can corrode and short out.  Check the AFM connection

as well.
Hopefully a code is stored that will help you find the problem.  It 
could also be a bad ground.  Good luck!

Joe
http://www.lovehorsepower.com

On 3/20/2011 10:00 PM, Donald Chalfant wrote:
> How can you tell its not cutting out when you're coasting?   When the
throttle closes, the ECU cuts the fuel injector feed.
> Is this a turbo or an NA?
>
>
>    Hello all, I've got a 92 mkii. Yesterday morning I noticed
something new
>    happening w/ the car. At speed and while under power when I hit
bumps in
>    the road (pot-holes, big expansion joints, etc) the engine would
briefly
>    cut out then immediately pick back up. Today on the drive home it
was
>    doing it more. It doesn't happen on every bump, and if I have my
foot
>    off the gas am just coasting, it doesn't seem to happen even on the
>    biggest of bumps. It also doesn't seem to happen at speeds lower
than
>    35mph. My thoughts are I've got some loose connection somewhere. I
tried
>    jingling the wires coming out of the brain while the engine was
running
>    and it didn't do anything. Today at work I checked in the engine
>    compartment, but didn't see any obvious loose stuff. The plug wires
at
>    the distributor cap are not loose.
>
>    Any one have any ideas?
>
>    Thanks
>    Sean
>
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