1999 altima, starts when cold, no start when hot

General discussion area for the L30-chassis Altima
UltimaKa24
Posts: 10
Joined: Wed Sep 15, 2010 7:45 am
Car: 1999 nissan altima se
obx 4-1 header
intake
p&p head

soon to come
BC stage 3 cams
BC full valvetrain
BC 2.6l stroker
AEM EMS
Stillen 4-1 header
DIY intake manifold

Post

yeah so my issue is when i wake up for class in the morning and start the car, it turns over first shot, but after i get to class, i try and start it again, it cranks and cranks and cranks but there is no ignition, i let it sit and the temperature gauge drops back down to 0*, it start again with little or no trouble.

I just replaced the battery, alternator, IAC, MAF, IAT. the code is being thrown for the MAP Sensor, and all the EVAP/EGR/SCV is all gone, so the codes being thrown for that are irrelevant. I wouldn't think the code for the MAP sensor would have much of an affect on the starting problem.

Anyone have any tips or pointers on what to check and/or why it won't start?

thanks again


Kon036
Posts: 35
Joined: Tue Feb 10, 2009 7:58 pm
Car: 92' 240SX

Post

Disconnect the ECT located by injector No.1. This will cause the ecu to use default coolant temp readings. Try starting the car. If the car starts while warm then the ECT maybe faulty and reading the engine as cold all the time. Obviously on a cold start it wouldn't be a problem, but on a hot start the cylinder maybe flooded with fuel and cause a no start condition.


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