sideways_fc

iTrader: (1)

I have a 94 rx7 all it has is intake front mount bov

so car can idle but its high everytime i press more than 1/4 thottle the motor cuts untill the rpms comes back down seems like if i throttle less than that it can go through the rpms please help been. Stuck for a year on this problem!! Any help would be appreciated thanks

DaleClark

iTrader: (55)

What have you tried to fix the problem so far?

Does it do it just revving the motor in neutral? If so, it's just a fundamental problem with spark or fuel.

Any ECU codes? Have you changed the spark plugs? Changed the fuel filter? Fuel pressure good?

Dale

theorie

iTrader: (31)

TPS sensor?

Mahjik

iTrader: (1)

First, read this thread:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-get-best-use-forum-911608/

You simply aren't providing enough information for anyone to be able to assist you. From the thread above:

Radial GT

iTrader: (16)

Need more info for sure!

I was having this problem right after I wired in my FJO driver for the secondaries incorrectly. Anytime I went over 30% the engine would cut terribly. Found the error in my ways, and it has been fine since.

sideways_fc

iTrader: (1)

It does it in netral or in gear i just pulled the codes i believe its 23 28 30 33 45 ive try'd 2 differnt tps both cant get into range prolly because i dnt warm it up spark plugs and wires are brand new. Also new fuel filter I bought the motor off a member of this site it was missing a few things like injectors waterpump alternator so bout all the parts did the simplified seq mod started it been trying to trouble shoot ever since

sideways_fc

iTrader: (1)

Cars only mods are downpipe front mount bov light pullys no air pump simple seq mod

theorie

iTrader: (31)

For the love of god, please speak in complete, sentences. At least try to use some punctuation - periods, commas, etc. No run-on sentences either - think before you type!

There are people who would be able to help you if they could just understand you...Here...I'll translate your post into non-retard English, maybe someone can help now:

Translation: The engine cuts out after 1/4 throttle whether the car is in neutral or in gear.

Translation: I've pulled the engine codes and it has reported: 23, 28, 30, 33, and 45.

Translation: I have tried two different TPS units but it is not reporting the correct voltage. Would this be because I did not give the engine time to warm up?

Translation: The car has new spark plugs, wires, and a recently replaced fuel filter. I bought this motor from another rx7club forum member but it was missing some parts, such as fuel injectors, the waterpump, and an alternator.

Translation: I bought and installed the missing parts and also performed the "Simplified-Sequential mod. Since I have installed the motor and performed these modifications, I have experienced the problem with the cutout after 1/4 throttle.



Now, all that aside. It sounds to me like the problem is your TPS sensor, as I suggested before. Can you give us the readings when the throttle is all the way closed and all the way open? If you have a Power FC you can follow this guide: http://www.westpennmazdaclub.com/fil...%20FD%20RX.pdf

Another thing that might be helpful to check: Are the fuel injectors OK? Did you buy them new or used? If used, did you have them flow tested first?

Mahjik

iTrader: (1)

23 Fuel thermosensor
28 Solenoid valve - EGR
30 Solenoid valve - split air bypass
33 Solenoid valve - port air bypass
45 Solenoid valve - charge control


IIRC, 23 will put the car into limp mode with the stock ECU. Do you have a fuel thermosensor connected? Have you check the wiring?

sideways_fc

iTrader: (1)

I thought the fuel thermo sensor would throw the car into limp mode. Does anybody have a picture or wire diagram of the fuel thermosensor?? And i just relized when i did the simple seq mod i didnt put any resistors would that throw the car into limp mode Any help would be great.

On the other hand sorry for the typeing im useing a cell phone and im at work. Just rying to get some insite before i get home and start on it...

Mahjik

iTrader: (1)

The fuel thermosensor is on the fuel rail (green sensor in the picture below). As for the others, the "45 Solenoid valve - charge control" would be only possible one of that bunch which may cause an issue; the other three would be fine to leave as is...

sideways_fc

iTrader: (1)

Thank you so much for the info/picture im going to try fix it monday.

Law

iTrader: (2)

So how's it looking on your car? Did you fix your issue?