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Old 11-29-2010, 01:12 PM   #1
donidavis
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96 Eclipse rs 2.0 non turbo Check Engine light

96 Eclipse rs 2.0 non turbo Check Engine light
Whats up guys... im having some problems with my Eclipse. I put a new engine in it about 2 mts ago and now its throwing 3 constant codes. The main one is 1487- High speed radiator fan control relay circuit fault. 1698- computer and the tranny not communicating. 1899- Neutral Safty switch. My car is a 5 speen but idk whats going on with it! can some one help me?
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Old 11-29-2010, 03:11 PM   #2
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Re: 96 Eclipse rs 2.0 non turbo Check Engine light

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96 Eclipse rs 2.0 non turbo Check Engine light
Whats up guys... im having some problems with my Eclipse. I put a new engine in it about 2 mts ago and now its throwing 3 constant codes. The main one is 1487- High speed radiator fan control relay circuit fault. 1698- computer and the tranny not communicating. 1899- Neutral Safty switch. My car is a 5 speen but idk whats going on with it! can some one help me?
Did you change the trans or the ECU at all at some point recently?
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Old 11-29-2010, 03:15 PM   #3
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Re: 96 Eclipse rs 2.0 non turbo Check Engine light

well... i just put the engine in it but i used the same tranny that came in the car. but yea i had unhooked the ECU a few times.
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Old 11-30-2010, 10:18 PM   #4
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Re: 96 Eclipse rs 2.0 non turbo Check Engine light

It shouldn't be throwing those codes if you didn't change anything but the motor. With a 5spd it should be throwing codes for the auto tranny. Im not sure if the auto ecus and 5spd are the same or not.
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Old 12-01-2010, 08:23 AM   #5
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Re: 96 Eclipse rs 2.0 non turbo Check Engine light

Na i dont think they are the same. but i wass told the tranny and engine is not communicating. so ima look and make sure no cords are broken.
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Old 12-01-2010, 09:35 AM   #6
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Re: 96 Eclipse rs 2.0 non turbo Check Engine light

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Originally Posted by donidavis View Post
Na i dont think they are the same. but i wass told the tranny and engine is not communicating. so ima look and make sure no cords are broken.
The only thing the ECU sees from the 5psd trans is the speedo. And if the ECU doesn't see speed, it won't throw a CEL. Plus, the 5spd doesn't have any sort of neutral switch.

Out of curiosity, in the engine bay by the ECU, do you have another unit next to it that looks like another ECU? Should be on the same braket
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Old 12-02-2010, 09:39 AM   #7
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Re: 96 Eclipse rs 2.0 non turbo Check Engine light

yea thats what i was thinking too about the neutral safty switch! but na its only one there! some ppl were telling me that it could be a crushed wire or something like that!
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