Question about 1999 Mitsubishi Eclipse
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Posted on Jan 02, 2017
I have a 95 Eclipse and I recently had to change out my TCU........ Transmission Control Unit, This should be located directly beneath the center console. First I would have the transmission services if problem persist then proceed to changing out the TCU you can get off of ebay. As far as i know there should be 3 Computers in our cars. 1 the Electronic Control Unit located behind radio 2 Transmission Control Unit located under center console and 3 Airbag Control Unit located under hood, Hope this helps.
Posted on Mar 06, 2009
SOURCE: check engine code P1494???
Definition of error code
Evap leak detection pump pressure switch condition
ECM detected the leak detection pump switch did change after solenoid was energized
1.-Leak detection pump defective
2.-Open or shorted circuit condition
3. Solenoid defective
Posted on Oct 07, 2009
SOURCE: somg check problem (code p1494)
The code could be set for a number of reasons such as a faulty gas cap, cracked vacuum lines, solenoids & vent valves stuck to the pump itself. It can be a very difficult fault to cure being it doesn’t take a very big leak anywhere in the system to set the code and that’s if it’s a leak and not an electrical or mechanical fault.
Start with the easiest, look at your fuel cap. Is the gasket good? Buy a new one, clean where it seats well, put it on making sure it clicks at least 3 times, and see if that solves it. If not you will have to start looking at hoses for hairline cracks. And yes, although it's rare, sometimes the canister itself gets a crack and needs to be replaced. It will be a dealer only item of course
Posted on Jun 06, 2010
The code refers to the leak detection pump that is part of the gasoline vapor control system which is for pollution minimization. It says either that the pump switch or mechanical operation is faulty. According to a Chrysler manual I have, you would find the pump, probably on the underside of the vehicle by tracing the hoses related to the vapor recovery tank that may be in the right front corner of the engine compartment (I don't know Jeep designs) and then check to see if the pump starts when you turn the ignition to the run position when the vehicle is cold. Then remove the vacuum hose side of the pump and see if it draws a vacuum. If it does, then the vacuum-detecting switch that detects that the pump operation is OK may be faulty. If the pump doesn't start or doesn't draw a vacuum then the power to the pump, the pump itself, or the vacuum line may be leaky. Finally, the powertrain controller could be at fault.
In any case, that is where the issue is, and it should not be a major issue if it is handled by a knowledgeable mechanic. But you could check it over yourself if you are so inclined. p.s. your best bet is to take it to a jeep dealer to get it fixed hope this helps please dont forget to rate my solution
Posted on Sep 30, 2010
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Sep 26, 2012 | 1999 Jeep Grand Cherokee
For more information see if you can get a copy of this Technical Service Bulletin from your local Mitsubishi dealer.
DATE: September, 1998
MODEL: 1996-97 Eclipse 2.0L Non-Turbo
Evaporative Emission Control Leak Detection System Diagnosis
This bulletin describes the operation of the evaporative emission control leak detection system and how to diagnose diagnostic trouble codes (DTCs) relevant to this system (DTCs 183, 184, 187, 160, and 161).
I think the whine you hear while turning the steering wheel is a P/S system that's low on fluid or a P/S pump starting to go bad.
The rattle under the dash could be anything from loose change to a loose component.
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