Halp Diamond Star Motored out

[Stegbauer, Michael]

Dude,  Lasers are the best!  

47psi sounds way high... I believe the fuel pressure spec for a non-turbo is
around 38psi (might be 42psi, and this is on the 92).  

The ECM will hardly ever flag a bad crank angle sensor because the car won't
start (or will stall) before the diag window runs out.  The CAS is about
$400 new, but you can get discounts on all new DSM parts (read on).  Be
careful if you pick up a used one, the 90 is different from the 92 and on
(I'm not sure about 91).

I think the transistors are about $120 each but there are 2, so a single
death would probably yield different results per cylinder.

The Idle Switch (if you're talking about the on/off switch on theTB) does
just about nothing.  A good portion of these get dirty and stop functioning
but the driver never notices.  The TPS itself could be a cause of no start.

You can pick up a used non-eprom ECU for probably $150 on the trader. 
If there is something wrong with the ECU, it's probably the capacitors.
They
have a habit of leaking and melting a hole through the PCB.  There are
instructions on how to check/fix this at www.tmo.com.

Lastly (off the top of my head), the NT has a MAF by virtue of it's blown
brethren.  If the MAF is reading high, the ECU has no feedback to counteract
the problem during open loop at startup.  It can't be tested without an
o-scope.  

Find a local DSMer, buy him or her a beer and swap a few parts.

The (used) parts trader is trader.dsm.org,  the main digest is www.dsm.org
where 
you'll find discount friendly dealers (vendors.dsm.org) and ~8 years of
archives.


Cheers,
Mike

Oh, didn't realize you way up there.  The prices noted are US$.



-----Original Message-----
From: Peter Fenske [mailto:pfenske at bcit.bc.ca]
Sent: Wednesday, April 07, 1999 12:54 AM
To: diy_efi at esl.eng.ohio-state.edu
Subject: Re:Halp Diamond Star Motored out




Hi Gang

Got a problem that maybe someone more in the know can help me.

90 Lazer, poor mans talon with 2.0 dual overhead cam no turbo engine
has a no start and we tried for one whole day to start it..

47 psi pressure, injectors firing. plugs wet with fuel, drowned actually.
Visible spark on all cyl. is a bit orangey though..
Ecm gives the 111111 ok same as code 12 gm..
Cams timing dead on mark..

Tps idle switch is dead but not cause of no start
When the dodges guys at the counter stopped laughing
and saying why on earth did you guys get a lazer they
said bout 100 $ for a simple switch. Think we will use door
jam switch..

Okay normal Gmese wisdom don't work here.
Junk er recycler says eh what when we ask if he has
a used ecm or cam/crank sensor or trans ign amp
each item bout 500$ new..laughs a whole bunch too

So besides using this car as a barbeque any ideas

definitely upset peter