Question about Toyota Paseo

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Can someone help me on my 1992 toyota paseo its hard to start when engine is cold.new fuel filter.new spark plugs.new injectors.thanks.

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  • jotmc04 Jul 16, 2010

    thanks a lot

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Hi!!

Here are some causes that can give you cold start problem.

Low fuel pressure - Check fuel pump pressure.
Vacuum Leak - Check vacuum hoses for cracks or loose connections.
Disconnected hot air tube to air cleaner - Reconnect tube.
Defective IAC va;ve (Intake Air Control Valve) - Check valve operation and circuit.
Open, misadjusted or defective TPS (Trottle Position Sensor) - Check operation and adjust or replace it.
EGR valve open - Test valve
Defective Oxygen Sensor - Test sensor
PCV Valve = Check valve by shaking it, should hear a rattling noise, if not replace.

Most of this problems would turn the check engine light on, if so, take vehicle to an Autozone or other autoparts store to have codes scanned, it will save you time finding the problem.

Good Luck!!

Posted on Jul 13, 2010

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hot soak ,no starts 101:
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is it flooding or starving
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you skipped the fuel filter:?
why not use a scan tool now.?
you crank for 5 seconds, see P03xx errors. DTC'
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bingo now you have your answer , finding this, scan tool free is hard hard work. am i to tell you that hard way, sure.
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2: ok sparks good, i check all spark plug tips, for wet and dry or soaked in fuel.
3: i see dry, , i use test fuel (same way for 100 years,)
run on test fuel (my Model a ford, same way works.....)
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all this perplexing, get your ASE mechanic in the loop.

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