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      08-27-2011, 08:08 PM   #1
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HELP!! engine malfunction during DCI install

EDIT** Can anyone point out where is the intake pressure sensor located? i dont want to spend couple hundred to tow the car to shop and let them inspect and found out just the sensor got disconnect. thanks

i was just start to install the DCI and only pull the battery rail forward and trying to squeeze the hose from the airbox. spend 20 minutes squeezing the hose cap and cant get it loose, so i gave up and reinstall the batt rail and push in the hose. when i start the car, it has very long crank and the engine wont start up.

i know this seems to be unrelated cause i dont think i did anything wrong or un-normal besides the hose cap, the car was running fine last night.

Last edited by qclik; 08-28-2011 at 06:44 PM..
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      08-27-2011, 08:31 PM   #2
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Possibly your intake pressure sensor got disconnected- it's in the charge pipe right below the airbox. Should set an SES, can cause ling crank times....
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      08-27-2011, 08:35 PM   #3
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Honestly that's why people should just pay a pro to get it done right..as for our issue check the sensors to see if anything got disconnected ,and make sure the tubes are on secure and tight !
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      08-27-2011, 08:50 PM   #4
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i plan on to let shop install it and other parts, but just cant wait that long and think it might be a easy job, and obviously i am wrong.

could someone point out where the intake sensor is, thank so much for all the replies

Edit* is the sensor located at top of the manifold with 3-4 cable connected?

Last edited by qclik; 08-27-2011 at 09:31 PM..
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      08-28-2011, 12:46 AM   #5
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Quote:
Originally Posted by thebigragu99 View Post
Honestly that's why people should just pay a pro to get it done right..as for our issue check the sensors to see if anything got disconnected ,and make sure the tubes are on secure and tight !

What ?
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      08-28-2011, 06:47 PM   #6
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still can't start the car, and don't find anything disconnect.
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      08-28-2011, 07:23 PM   #7
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What are your other modifications? Do you have a tune? If so, which one?
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      08-28-2011, 07:27 PM   #8
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Quote:
Originally Posted by qclik View Post
EDIT** Can anyone point out where is the intake pressure sensor located? i dont want to spend couple hundred to tow the car to shop and let them inspect and found out just the sensor got disconnect. thanks

i was just start to install the DCI and only pull the battery rail forward and trying to squeeze the hose from the airbox. spend 20 minutes squeezing the hose cap and cant get it loose, so i gave up and reinstall the batt rail and push in the hose. when i start the car, it has very long crank and the engine wont start up.

i know this seems to be unrelated cause i dont think i did anything wrong or un-normal besides the hose cap, the car was running fine last night.
tmap is on the chargepipe close to throttle body. I doubt you disconnected that though. Look around to see if anything is loose. What are your other mods? Did you leave the car on accessory?

Quote:
Originally Posted by thebigragu99 View Post
Honestly that's why people should just pay a pro to get it done right..as for our issue check the sensors to see if anything got disconnected ,and make sure the tubes are on secure and tight !
lol
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      08-28-2011, 07:27 PM   #9
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Quote:
Originally Posted by scottp999 View Post
What are your other modifications? Do you have a tune? If so, which one?
procede v4

other indicator may be that the day before i gave jump start my friend's car, but driving the car all day and have no problem, the malfunction doesnt seems to related to battery, everything is fine just the engine wont start with long crank
my oil life left 1200miles, and pour in a bottle of techron 3 days ago.
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      08-28-2011, 07:30 PM   #10
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Quote:
Originally Posted by qclik View Post
procede v4
You didn't open up the ecu box for anything did you? Is it possible your power connection to the procede worked it's way loose? One of the symptoms of hooking up the procede power to the wrong spots in the green power box is that the car will turn over and not start.

Might be worth checking it if you are comfortable with doing it, and you are they one who put it in.
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      08-28-2011, 07:34 PM   #11
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Read this. Don't worry that there is mention of Rev1 procede, the power issue it the same over all rev's (rev 1, 2, or 3 hardware). http://www.e90post.com/forums/showth...ighlight=power
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      08-28-2011, 07:38 PM   #12
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Do you know someone with a bavtec cable that can pull codes for you?

Another possibility is the fuel pump (checking for codes would help determine).
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      08-28-2011, 07:47 PM   #13
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i did have some minor issues with the power connection with the procede, the pin of the original cable is a bit bend cause i push the procede cable in but it seems to connect just fine and with several layer of electric tape. i also plug in the correct slot. my procede was installed a month ago with no problem.

i didnt touch the ecu at all. all i did yesterday was pull the batt rail forward and try to disconnect the tube of the hose in front of the airbox.
the problem is that i dont start the car before i try to install the DCI and after i wanna take a break after can't getting the tube to loose, the car wont start. so i dont whether the problem is related to what i did during install or other problem.

thanks for all advice, will try to check the ECU and continues the DCI install and see whats wrong under the airbox.
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      08-28-2011, 07:50 PM   #14
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Quote:
Originally Posted by scottp999 View Post
Do you know someone with a bavtec cable that can pull codes for you?

Another possibility is the fuel pump (checking for codes would help determine).
yeah, i know a mechanic who can do that and was originally plan to let him install the DCI, DP and other parts. maybe i just call him tomorrow to ask him come over to check it out and bring the car back to get everything installed properly
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      08-28-2011, 10:06 PM   #15
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still can't find any sensor look like thing on the charge pipe, can anyone help to point out with pic, thanks.
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      08-28-2011, 11:49 PM   #16
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Follow your charge pipe the first bump on the side or bottom that is after your rear dv is the sensor you will also feel wires connected to it. Its close to the throttle body look up jb+ install or sstt install it will show you.
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      08-29-2011, 12:15 AM   #17
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the DCI is a very simple install i highly doubt you hit the sensor as you say you didnt even remove the air box and it sits bellow the air box behind the diverter valves.

could be a fuel pump issue, have your mechanic pull the codes.
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      08-29-2011, 12:58 AM   #18
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found it!! i do mess around with those 3 batt cable during install and maybe knock the sensor, damn really hope just the problem of the sensor as i am out of warranty
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      08-29-2011, 11:06 PM   #19
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checked all the cable and sensor today and all are tighten properly, guess it will be hpfp problem and are now waiting the mechanic to bring his bt tool
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