C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

'89 starting problem?

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Old Jan 3, 2010 | 02:35 PM
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My '89 convertible has an inconsistent starting pattern. The car fails to start and has to have starting fluid sprayed into the fuel induction system. I have cleaned the injectors, replaced plugs, distributor cap, rotor and air flow sensor. Any suggestions will be appreciated.
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Old Jan 3, 2010 | 02:48 PM
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Does it run fine after you get it going with starter fluid ?
Have you ohm tested the injectors, cold and hot ?
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Old Jan 3, 2010 | 03:00 PM
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I have not checked ohms of injectors, however, car runs good after the starting fluid gets it started.
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Old Jan 3, 2010 | 03:06 PM
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Do you hear the fuel pump run for 2 seconds, when ignition is turned on ?
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Old Jan 3, 2010 | 03:17 PM
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Yes, the fuel pump is new also.
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Old Jan 3, 2010 | 03:22 PM
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What is the fuel pressure when ignition is turned on ?
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Old Jan 3, 2010 | 03:33 PM
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Can you help me with testing info?
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Old Jan 3, 2010 | 03:35 PM
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Do you have a pressure gauge that can mount to schrader valve ?
I would ohm test your injectors, in the mean time.
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Old Jan 3, 2010 | 03:39 PM
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Thank you for the help, I will try to test these points.
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Old Jan 3, 2010 | 03:44 PM
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Check out Jon's video on ohm testing.


http://forums.corvetteforum.com/c4-t...questions.html
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Old Jan 3, 2010 | 03:58 PM
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Thank you
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Old Jan 3, 2010 | 03:58 PM
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Originally Posted by jstewp
Any suggestions will be appreciated.
Get a hold of Jon with FIC he'll size your applicaition up for ethenol compliant Bosch III injectors.

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Old Jan 3, 2010 | 11:56 PM
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Originally Posted by jstewp
My '89 convertible has an inconsistent starting pattern. The car fails to start and has to have starting fluid sprayed into the fuel induction system. I have cleaned the injectors, replaced plugs, distributor cap, rotor and air flow sensor. Any suggestions will be appreciated.
You may have a bad coolant temp sensor.If you have no access to scan tool to see what coolant temp computer is seeing just replace sensor as its cheap.Just make sure its for the computer.Does this year car have a cold start injector?Have you replaced fuel filter?Any codes stored in computer?You can use paperclip method to retrieve codes
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