As the title stated, my FD will not stay on. Very difficult to get it start, but once it started, it will turn off itself. I have to keep giving it gas inorder for the car to stay on. It is not a flood, I unflood it and it fires up very easily. But if I take it out for a drive, it will die out by itself once I left my foot off the gas pedal. Then if I try to start it again, it becomes very difficult for the car to start. Once started, it needs me to keep pressing the gas pedal for it to be on. Anyone experience this before? Thanks!

 

Blown motor? Maybe. Usually that can happen when u blow a seal. Bump for someone who needs help ASAP.

 

do you still have the GT-40 single without tuning??
https://www.rx7club.com/forum/showthread.php?t=466691

what where you doing before it started running badly?

I would stop driving it and do a compression test. But maybe your lucky and knocked the map sensor off.

 

Yes, check the map senser first. That happened to me.

 

Map sensor is fine. I checked all compressions as well. Everything seems fine. All spark plugs are new. I still don't have a clue guys.

 

what are your compression ratings?

could be bad earthing (a serious case though, mind you)

 

Swap in a stock ECU and pull the codes.

Dave

 

True True, anyone lives near my area and willing to come down to help me out. Because I don't have the stock ECU with me no more. I live in Brooklyn, NY.

 

Don't switch back to the stock ECU. Chances are, since you have a single turbo, you are going to pull a ton of codes which aren't needed.

Start with the basics:

1. Has the car had this problem since your single conversion? If not, when did it start?

2. What are the results from your compression test?

3. What are your fuel mods?

 

have you by any chance touched your TPS ? try adjusting it. ( Throtle Position Sensor ) incase you didnt know.

 

1. First time ever had this problem since single conversion
2. Compression numbers are all at normals
3. Fuel Mods - 550/1300 Supra TT fuel pump

I didn't adjust the TPS. I will try to do that also.

 

let me know what happens

 

So, did anything change just before it started happening? Poking around in the engine bay? Install something else?

What exactly where the numbers?

Have you verified you are getting the proper fuel pressure?

Good thing to check as well.

 

agree!

give us more info so we can help you figure this out. Its too vague. If you can answer Mahjik questions out especially the compression numbers that would help alot.

 

Check the idle air control valve as well. If it goes bad the car won't want to hold an idle. Also, I'm think I'm local to you. If you can get the car to me I can look at it or maybe take a ride to you. Shoot me a pm.

 

Also, check to make sure the large diameter Harness (wires) that runs above the Driver side wheel (between the inner wheel lining and the chassis) isn't torn. I had a situation where my tire ate into the lining and then into the Harness and severed about 8 individual wires. It caused the Engine to die/stall and flood.

My front-end sits pretty low. I connected the wires in the harness and everything was back to normal.

 

Thanks for all the help guys. I will get the exact compression numbers up ASAP.

I do not have an exact car for now. I will try to borrow a car and get you down here. Thankyou so much bro!