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Thread: Swapping from GA15DE (manual) to QG18DE (automatic) in B14 (2000 model). Need help

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    Red face Swapping from GA15DE (manual) to QG18DE (automatic) in B14 (2000 model). Need help

    Assalam u Aliakum Guys.

    I am from Quetta and long story short, i have Nissan B14 2000 model having GA15DE. My car engine area completely burnt up due to short circuit. I have completely restored the engine bay area and replaced every part. Since my engine was also burnt up, hence i bought QG18DE for 70k in Automatic transmission from here. Now the electrician is having headache while doing the wiring of this engine but he is optimistic that he can start this thing up.

    He told me that he needs the internal wiring (not the engine wiring) as well which complements QG18DE. Now i've seen people here who have swapped QG18DE in their B14s ..... Need help from you guys for which parts and wiring is required ..... Also do tell if i should keep moving on with QG18DE project or should again replace it with GA 15DE

    Pic of QG18DE Engine:

    https://www.pakwheels.com/forums/images/attach/jpg.gif
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    Quote Originally Posted by qazishehryar View Post
    So finally after the immense help from danial brother, i fired up the engine yesterday to check it and it started on first ignition on start. It was great and stable alhamdulillah. Mechanic and Wiring Electrician were amazed by the engine and praised it.

    Tested the shifting mechanism and transmission and its all good.

    RPM and Speed meter is working without any kit or alteration to the speedometer.

    Installed OBD-2 Links and checked. Found only two error codes which i am sure is because of ground wiring.
    Congrats

    Sent from my Z12 using Tapatalk

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    Quote Originally Posted by qazishehryar View Post
    So finally after the immense help from danial brother, i fired up the engine yesterday to check it and it started on first ignition on start. It was great and stable alhamdulillah. Mechanic and Wiring Electrician were amazed by the engine and praised it.

    Tested the shifting mechanism and transmission and its all good.

    RPM and Speed meter is working without any kit or alteration to the speedometer.

    Installed OBD-2 Links and checked. Found only two error codes which i am sure is because of ground wiring.
    Inshallah you'll end up enjoying this car alot.
    Waiting to see you in isb soon

    Sent from my SM-G360H using PW Forums mobile app
    STYLISH BOYZZZ STYLISH ATTITUDE

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    Alhamdulillah most of the work is done and both the ECM and TCM (OBDII) are clear of all error codes .... however i have some questions:

    1. How many o2 sensors does qg18de needs? the manual shows 2 one in the engine and one in the rear pipe .... the rear pipe one is not installed but the OBD shows no error code about it ... so should i get one installed by making a hole in the pipe and getting an o2 sensor and connect it to ECM or just leave it as it is?

    2. Gear is shifting to every point 1, 2 and D... at D all 4 gears are shifting .... however, OD switch from TCM is not working and the gear is not shifting from D4 to D3 when OD is off .... i followed following diagram and connected wire 13 (OD lamp indicator) to the meter and wire 22 to OD switch in the gear lever .... tried testing it without gear lever as well but not working ....

    https://www.pakwheels.com/forums/images/attach/jpg.gif
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    @star2 someone needed your help in figuring his TCM issue.

    Sent from my Z12 using Tapatalk

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    Resolved the problem of OD .... no engine or transmission codes present.... my engine has only one o2 sensor with 6 wires .... completed all the internal wiring ..... hope to put it on road next week ....

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    jdm QG have single o2.
    Your ego is writing cheques, your body can't cash.

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    Quote Originally Posted by ahmed2396 View Post
    jdm QG have single o2.
    He doesn't have jdm version bro.
    Four strip ecu.
    This one also has three variants one has six wired one o2 and other with two O2 sensors one precat and one post cat and one has four O2's.

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    Quote Originally Posted by dani_kk View Post
    He doesn't have jdm version bro.
    Four strip ecu.
    This one also has three variants one has six wired one o2 and other with two O2 sensors one precat and one post cat and one has four O2's.

    Sent from my SM-G360H using PW Forums mobile app
    Yup its the Latin American qg18de with only one o2 sensor .... Differences between US QG and Latin A. QG

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    By the Grace of Allah today i finally took my car for a ride .... its an awesome and brave engine .... damn good .... 100km/h at 2k rpm on 4th gear .... i took it to 160km/h with no problem at all ... crossed all the axios, premios, glis on the way and they were like WTF!!! :p

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