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

86 hard to start when cold.

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Old 09-25-2016, 10:34 PM
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C486Bill
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Default 86 hard to start when cold.

Just recently my 86 has decided that it was going to be a pain starting when cold. Used to be it would jump to life, then it got where I would turn key on, crank it over turn off then crank it would run good, idle like it supposed to. Now, no matter what it kind of just blubbers to life and after it warms up it is ok. Is this my CSI? If so, where can i get one. If not, wht should I look at? Have changed the IAC and the TPS voltage is set at .54. Also the MAF is new. . Not sure what else to check

Last edited by C486Bill; 09-25-2016 at 10:35 PM.
Old 09-25-2016, 10:43 PM
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Bwbob
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Originally Posted by C486Bill
Just recently my 86 has decided that it was going to be a pain starting when cold. Used to be it would jump to life, then it got where I would turn key on, crank it over turn off then crank it would run good, idle like it supposed to. Now, no matter what it kind of just blubbers to life and after it warms up it is ok. Is this my CSI? If so, where can i get one. If not, wht should I look at? Have changed the IAC and the TPS voltage is set at .54. Also the MAF is new. . Not sure what else to check
Have you considered moving to a warmer climate?:rock
Old 09-25-2016, 10:50 PM
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C486Bill
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Originally Posted by Bwbob
Have you considered moving to a warmer climate?:rock
Haha, No way I am moving whre it is warmer than here in North Fla. Right now it is 88 degrees at 1040 at nite! Car sat up for a few months before it started happening to the point it doesnt like the cold starts at all

Last edited by C486Bill; 09-25-2016 at 10:51 PM.
Old 09-25-2016, 10:55 PM
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antfarmer2
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How is the fuel pressure and filter.
Old 09-25-2016, 11:41 PM
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C486Bill
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Originally Posted by antfarmer2
How is the fuel pressure and filter.
havent checked fp since changing the pump maybe 7 8 months ago "was good at the time" and filter was changed prob 2 months ago. Maybe 300 miles since due to being in paint shop for long time
Old 09-26-2016, 08:55 PM
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rrt898
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Originally Posted by antfarmer2
How is the fuel pressure and filter.

Sounds like your fuel pressure. Put a gauge on it and see if it holds overnight.
Old 09-26-2016, 09:15 PM
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Originally Posted by C486Bill
Haha, No way I am moving whre it is warmer than here in North Fla. Right now it is 88 degrees at 1040 at nite! Car sat up for a few months before it started happening to the point it doesnt like the cold starts at all
It was late, i was drinking, i knew i should have checked your signature after i posted. It was funny at the time to me.
Old 09-26-2016, 10:30 PM
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aklim
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2 things come to mind. Dirty injectors and coolant temp switch. Find the sensor, hit it with an infra red thermometer and scan the car to see what it reads for temperature that the ECM sees.

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