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toolman0007
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Sep 21, 2012, 8:28 PM
Post #1 of 10
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engine troubleshooting
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well now we continue. again 1991 eagle talon tsi with turbo. I have three things 1 best way to check coils 2 best way to check fuel injectors 3 there is a 6 wire plug from passenger side engine compartment looking towards driver side just under the intake inlet to the left. im not sure what it is but with the key on it makes a chattering or chirping noise. not sure if it meant to do that. problem i'm trying to solve. will start and idle but idle is not real smooth the min you start to throttle up it gets choppy and seems like one cylinder is badly skipping or miss firing. how about it guys any input and again the check engine light is not on will be checking for any stored codes
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 22, 2012, 9:47 AM
Post #2 of 10
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Re: engine troubleshooting
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You really should have one thread on this subject instead of breaking each question down into other threads if the subjects are all related. There would be a lot less confusion.
Redirect link for original topic on check engine lamp:
http://autoforums.carjunky.com/...6792;t=search_engine
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Sep 22, 2012, 9:48 AM)
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 22, 2012, 9:50 AM
Post #3 of 10
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Re: engine troubleshooting
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You need to figure out which cylinder is missing. That means you have to disable each cylinder one at a time to see if there is a difference in the running of the engine.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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toolman0007
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Sep 22, 2012, 12:23 PM
Post #4 of 10
(2041 views)
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Re: engine troubleshooting
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this is something I totally understand. pulled each injector plug one at a time and buy what I observed tells me they are all working but to what extent . I also pulled one wire at a time from coil. all four are snapping and delivering spark. other things I have checked, compression all four cyl at 150, checked timing belt and all timing marks are where they should be. other things that are being dealt with. toasted battery factory fuel filter never changed and has 72000 on it. They have not driven this very much at all over the past few years. I am questioning fuel quality color is off not a varnish smell but one can tell it's old. i'm told two years old.I'm thinking more like three. a sample pumped out and set over night shows no sign of moisture or water build up. considering the tank not being kept full. something I haven't but will check. is plug wire order on the coils. seeking a obd1 scanner or analog volt meter so I can see if there are any codes present. not sure if this would work, like the 80 and 90 chevys. cross the #1 #12 pin and have the check engine light as a code reader or do the same with just a 12 volt bulb and not a meter ???
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 22, 2012, 3:30 PM
Post #5 of 10
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Re: engine troubleshooting
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Probably wouldn't be a bad idea to drain the old fuel and see how the engine runs on fresh fuel.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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nickwarner
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Sep 22, 2012, 3:31 PM
Post #6 of 10
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Re: engine troubleshooting
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You have spark, compression, timing and injector pulse. While codes are needed for sure I think you need to back up and look at the obvious thing you mentioned yourself. You have old junk gas. The ethanol they put in it has 1/4 the storage life of gasoline, and 2 years is too old even for pure gas. Dump out the fuel, change the filter, put a tank of fresh gas with a little bit of Seafoam in it for good measure and drive it a bit. I don't care what parts you put on it of how old or new any car is, everything on this earth will run like crap on two year old gas. It doesn't matter there isn't water in it, the stuff is garbage. Use it to light a bonfire, don't use it to run a car.
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toolman0007
User
Sep 23, 2012, 7:53 PM
Post #7 of 10
(2018 views)
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Re: engine troubleshooting
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yes I have already planed on dumping old fuel fuel filter .while i'm here is the fuel system on this a pressurized system the only time I get fuel is when it is cranking
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nickwarner
Veteran
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Sep 23, 2012, 8:33 PM
Post #8 of 10
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Re: engine troubleshooting
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The fuel pump kicks in when the key is turned on for about 2 seconds. After that it comes on only when it gets a signal that the engine is cranking. If you're planning on draining the tank using the pump because you don't want to drain the tank by removing it then jump the load side of the fuel pump relay.
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toolman0007
User
Sep 25, 2012, 5:29 AM
Post #9 of 10
(1985 views)
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Re: engine troubleshooting
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well with the key on I get no fuel flow out the line at the rail at all. only when it is in crank mode . thanks for the tip on getting the tank empty but I have a pump I have all set up for doing that task.
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 25, 2012, 10:12 AM
Post #10 of 10
(1978 views)
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Re: engine troubleshooting
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That Eagle may not be programmed for a 2 second prime.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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