n/a to T2 swap won't start

87T2swapped · 05-24-2012, 10:28 PM

I have a 87 base shell i dropped a T2 motor into. I swapped the motor harness with all the senors and kept it pretty factory. Went to start it and all it would do is crank. the motor came from a running car but the shell wasn't. i have spark and i'm pretty sure on fuel because i can hear it going through the fuel rail and ive pulled off the upper intake and removed the injectors. all of them click. i'm at a loss bc it was running before pulled and started right up besides the rough idle issue it had. was said to have a problem boosting but was suppose to be a leak. ive checked my fuel lines and they seem to be hooked up right but it started up and ran on starting fuid for a moment so i'm presuming its a fuel issue. any ideas on what to check and where to start would be awesome. thank you

12arotary · 05-24-2012, 11:44 PM

I'm not sure why you are loss there are only so many parts that can fail in the fuel system
are the injector clips on correct? is there fuel in the tank? is it old gas?

87T2swapped · 05-25-2012, 12:23 AM

i'm really aggravated with it and the car went from a shell to a full t2 swap in 3 days trying to get it ready for a drift event. the tank was cleaned and has 5 gallons of fresh 93 in it and the clips were on correct. ive messed with rotarys before but this is my first swap and really getting into one. fuel pump is running so i know its not the problem i'm just wondering if i'm missing a relay or fuse that is bad because the car was a non running shell and it sat for a few years.

My5ABaby · 05-25-2012, 06:45 AM

There could be a lot of reasons. Does it even try to catch/start?

I would make sure you have fuel coming out of the injectors. Take the rail off, secure the injectors to the rail, and crank it and see what happens. I would put some sort of catch device (e.g. a cup) under there so fuel doesn't spray everywhere. I'd probably also cut spark when doing this.

You could also have a vacuum leak causing it to not start. Are you sure all the vacuum lines are hooked up?

AFM hooked up?

FerociousP · 05-25-2012, 09:37 AM

Did you plug in the two connectors under the dash? These plugs contain power for the injectors.

vrracing · 05-25-2012, 09:49 AM

You didnt say if it was a JDM Tii you used for the swap but if it is you may have the fuel lines reversed. The JDM fuel intake and return are opposite the US ones so it is very common for them to be put on wrong. Pull the fuel return off and jump the fuel primer port and see if fuel flows. Be careful and dont blow yourself up.

05-24-2012, 10:28 PM	#1
87T2swapped The Newbie Join Date: May 2012 iTrader: (0) Posts: 2 Rep Power: 0	n/a to T2 swap won't start I have a 87 base shell i dropped a T2 motor into. I swapped the motor harness with all the senors and kept it pretty factory. Went to start it and all it would do is crank. the motor came from a running car but the shell wasn't. i have spark and i'm pretty sure on fuel because i can hear it going through the fuel rail and ive pulled off the upper intake and removed the injectors. all of them click. i'm at a loss bc it was running before pulled and started right up besides the rough idle issue it had. was said to have a problem boosting but was suppose to be a leak. ive checked my fuel lines and they seem to be hooked up right but it started up and ran on starting fuid for a moment so i'm presuming its a fuel issue. any ideas on what to check and where to start would be awesome. thank you

05-24-2012, 11:44 PM	#2
12arotary tumor-syphilis-itis-osis Join Date: Sep 2008 iTrader: (0) Posts: 191 Rep Power: 17	I'm not sure why you are loss there are only so many parts that can fail in the fuel system are the injector clips on correct? is there fuel in the tank? is it old gas? __________________ 82 300d 82 Gsl 84 b2200 Diesel 88 gxl

05-25-2012, 06:45 AM	#4
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	There could be a lot of reasons. Does it even try to catch/start? I would make sure you have fuel coming out of the injectors. Take the rail off, secure the injectors to the rail, and crank it and see what happens. I would put some sort of catch device (e.g. a cup) under there so fuel doesn't spray everywhere. I'd probably also cut spark when doing this. You could also have a vacuum leak causing it to not start. Are you sure all the vacuum lines are hooked up? AFM hooked up? __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

05-25-2012, 09:37 AM	#5
FerociousP I-had-a-bad-experience... Join Date: Feb 2008 Location: M'boro iTrader: (2) Posts: 1,046 Rep Power: 18	Did you plug in the two connectors under the dash? These plugs contain power for the injectors. __________________ '15 Juke Nismo '06 MX-5 GT SOLD '04 S Silver RX-8 GT Track Day Use SOLD '90 Black TII vert w/ Sprint RE stock port/turbo DD dyno (242.6whp@5500rpm @12psi 8psi@redline) and (250ftlbtq@4800rpm @13psi) SOLD '89 GTUs 6p TII SOLD, '87 sport SOLD, '79 SA stock SOLD '91 B2600i 4x4 w/ Rx-8 LSD SOLD

05-25-2012, 09:49 AM	#6
vrracing Rotating Assembly Join Date: Oct 2008 Location: TX iTrader: (0) Posts: 102 Rep Power: 17	You didnt say if it was a JDM Tii you used for the swap but if it is you may have the fuel lines reversed. The JDM fuel intake and return are opposite the US ones so it is very common for them to be put on wrong. Pull the fuel return off and jump the fuel primer port and see if fuel flows. Be careful and dont blow yourself up. __________________ 90 S5 Vert. JDM Tii with BNR Stage1 turbo. Pineapple Racing street port. Bonez cat-forward. Corksport cat-back with Vibrant UltraQuiet resonator. RTek 2 wZeitronix w/b. HKS EBC. Vis CF Tii hood. 3000GT wing. Ground Control coilover kit with KYB AGX shocks. Red and Black leather RX8 seats. Corksport Odura lip & bumper caps, OEM Tii skirts

05-25-2012, 12:23 AM	#3
87T2swapped The Newbie Join Date: May 2012 iTrader: (0) Posts: 2 Rep Power: 0	i'm really aggravated with it and the car went from a shell to a full t2 swap in 3 days trying to get it ready for a drift event. the tank was cleaned and has 5 gallons of fresh 93 in it and the clips were on correct. ive messed with rotarys before but this is my first swap and really getting into one. fuel pump is running so i know its not the problem i'm just wondering if i'm missing a relay or fuse that is bad because the car was a non running shell and it sat for a few years.

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