Rebuilt, started, and then she is starved :(

[laotionracer101]

My fuel is nada. The pump isnt kicking on when i cycle the key or try to start it. Like i said the car did start (twice). I decided to run wires from the battery all the way back to the pump and see if it was still working or blown. And the little bastard kicked on While i had the line disconnected in the bay so i got gas everywhere. Obviously im getting no juice to the pump, is there a fuse or something? Also it didnt start when i jumped it and turned it over at the same time. (Timing/spark is good also) :3d_frown: 1987 7mge supra...

 

[kamikazemkiii]

Yes, check the efi fuse. Its in the engine bay fuse panel and its a 15amp.

 

[laotionracer101]

Hmmm I'll get on it tomorrow, If its blown.. I wonder what next am i looking at.

 

[laotionracer101]

Okay efi fuse is good..

 

[TweeT91109]

Okay efi fuse is good..

 

[mecevans]

Most toyota pumps only turn on once the engine is cranking or running. I dont know if its the case with ours.

 

[laotionracer101]

Most toyota pumps only turn on once the engine is cranking or running. I dont know if its the case with ours.

Hmm this could very well be a possibility, I am starting to get discouraged by this. But i do not see how my car still wont start when i jump the pump. I just dont know what to do. Does not make sense.

On the intake, the vacuum line that runs to the power steering pump. Is that critical to it starting?

 

[mecevans]

I really think it your cps. If the ecu doesnt see the cam moving it wont fire the plugs or switch on the pump.

 

[laotionracer101]

I really think it your cps. If the ecu doesnt see the cam moving it wont fire the plugs or switch on the pump.

Im pretty sure the 7mge is not equipted with cps.. http://www.toyota-supra.info/forums...-n-a-cam-position-sensor-vs-88-turbo-cps.html

 

[mecevans]

The 7mge still has a cps. Have you verified that you have spark?

 

[laotionracer101]

Yes i have spark.

 

[hvyman]

Ge has dist. Could have just jumped fp and b+ instead of running wires.

Cold start injector time switch good?
Circuit opening relay?
Afm? Check continunity between fc and e1 with plate open.

 

[laotionracer101]

Ge has dist. Could have just jumped fp and b+ instead of running wires.

Cold start injector time switch good?
Circuit opening relay?
Afm? Check continunity between fc and e1 with plate open.

Okay sir, I am a part of the supra community but you just blew my mind. Were are the CSITS, COR, AFM, at and how do i test them? Also I do not know what the heck an FC is or an E1.. But i do know how to test continuity ^.^

 

[benchwarmer]

Turn the key to on, walk to the front of the car, and manually open the AFM flapper door with your hand or a screwdriver. You should be able to hear the fuel pump turn on. If it doesn't work, check the AFM connector and make sure it is clean and securely fastened. If it still doesn't work either your AFM is bad or there is a short somewhere in the fuel pump circuit.

Your answers are here: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=1

 

[laotionracer101]

Turn the key to on, walk to the front of the car, and manually open the AFM flapper door with your hand or a screwdriver. You should be able to hear the fuel pump turn on. If it doesn't work, check the AFM connector and make sure it is clean and securely fastened. If it still doesn't work either your AFM is bad or there is a short somewhere in the fuel pump circuit.

Your answers are here: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=1

Will do., And appreciate the link, its like a mini alldata,, but only for mk3's haha

EDIT: Eeek just realized my vsv isnt plugged up.. pretty sure thats gotta be of some importance right? i mean toyota wouldn't throw on something useless correct? other than TEMS, and 100lbs of motor in the driver seat, And 4x4 suspension setup right?

 

[radiod]

When you say that you forgot to plug it in, did you forget to plug in the vaccuum lines or the plugs? The VSV's under the intake manifold are for the EGR and fuel pressure control with warm starts. I'm pretty sure it would start if the electrical wasn't plugged in, but not sure if it would start without the vaccuum routed properly with one being tied to the regulator.

You did confirm that you're getting fuel?

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=71

You should hear the pump turn on by doing the first step there.

 

[laotionracer101]

When you say that you forgot to plug it in, did you forget to plug in the vaccuum lines or the plugs? The VSV's under the intake manifold are for the EGR and fuel pressure control with warm starts. I'm pretty sure it would start if the electrical wasn't plugged in, but not sure if it would start without the vaccuum routed properly with one being tied to the regulator.

You did confirm that you're getting fuel?

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=71

I did not conform by way of jumping with (sst) I assume that is just a wire?.. And the VSV in not plugged up through vacuum or electric. Although it did start before so that might not be major. The EGR VSV is plugged up, and not the Warm start.

 

[laotionracer101]

She's alive my friends C: I just redid all of the vacuum lines and checked sensor wires etc. , Turns out a few vacuum lines can change a Dead car to an alive one.. I appreciate the help Guys you don't know how much i appreciate advice.

 

[benchwarmer]

Glad you got it sorted out.