1990 hard to start when cold

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Jun 25, 2013 | 05:36 PM

faehndb

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1990 hard to start when cold

I replaced the fuel pump on my 305 1990 Camaro RS. However I still need to crank the engine for a while before it starts. When it is warm it starts fine. Any ideas?

Jun 25, 2013 | 06:30 PM

ex-x-fire

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Re: 1990 hard to start when cold

Ohm the coolant temp sensor.
Check your fuel pressure, tbi spec is 9-12 psi running.

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1990 hard to start when cold-cts_chart.gif

Jun 25, 2013 | 06:49 PM

faehndb

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Re: 1990 hard to start when cold

Thanks Where is the coolant sensor located?

Jun 25, 2013 | 07:18 PM

ex-x-fire

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Re: 1990 hard to start when cold

Measure the resistence when the engine is cold, the coolant temp will be near the outside air temp, so reference the chart. The sensor is in the intake manifold.

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