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need help figuring out what is wrong
Topic Started: May 19 2013, 05:52 PM (1,221 Views)
3cyltom
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i think one of the hamsters died. with the key off, pop the hood and check the stste of the hamsters (alive\dead) replace the dead one, motor on. seriously drive it with a fuel psi gauge taped to the window. duplicate the concern. sounds fuel related.
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mwebb
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FOG

DVOM
red test lead connected to
02 sensor black wire

set scale to DC volts 0 to 2 volts or 0 to 4 or something close
you will be looking at a range of 0 to 1 volt so get as close to that
(but not under it)
as possible
negative test lead to battery negative

meter will bounce between 0 and 1 volt when the engine runs and the 02 sensor is hot
all the time
it should never stop bouncing - if the meter is flatlined it is connected incorrectly OR the 02 sensor is kaka

drive car
watch meter
when problem occurs
describe in great detail what the meter does

basically
meter goes to 0 and stays there means there is no fuel , system is lean , fuel starvation
meter goes to 1 and stays there , means no spark OR lots of fuel OR extreme problem with MAP sensor or fuel pressure regulator

this simple test will narrow down your possibilities
this assumes there is fuel , not water in the fuel tank
Edited by mwebb, May 21 2013, 10:04 PM.
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cwatkin


Do you ever get a nasty exhaust smell like that you get when an old smoky two stroke boat motor is first fired up in the morning? I was getting this during my ground and TPS issues. It would run like crap and I could barely keep it running, then it would just run great like nothing was wrong.

Conor
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