rx7man88

It hasn't done it in quite some time and all of a sudden it happend twice in the past 2 months. Each time I had to replace the spark plugs (which aren't cheap). I heard there was something I can get to prevent this. Does anyone know?

momar

If your injectors are leaking there is a fuel pump cut off switch I have heard of, but not sure of how to make it, I could use one too. You could also buy a fuel bleed off thing from Mazdatrix, but I'm not sure how well it works. If it isn't your injectors then I don't know what to do.

13BAce

If your injectors are leaking then you could try getting them cleaned/balanced. I've had 2 sets done my Marren Motorsports, http://www.injector.com, with great results.

A quick fix would be the fuel pump cutoff switch. I put one in my friend's car. We cut the positive fuel pump wire and wired a toggle switch inbetween the cut wires. Adding a realy would be a good idea, but we didn't bother. You turn the switch off before you try to start the car, and when you start to crank the motor turn the switch on.

13BAce

If your car isn't flooded badly then you can just crank the car a few times with the underhood EGI fuse removed. Then put the fuse back in and the car should start.

rx7man88

oh yea, I heard about that fuse...which one is it now?

13BAce

Look for the little fuse block under the hood on the driver's side strut tower. The cover tells you which fuse is which. You want to pull the EGI INJ fuse.

PlayinW/Wankel

Guys please help me. my 88 se floods every other time I try to start it and it is getting really annoying having to deflood the thing every time I want to start it. What could be the problem? It is really starting to **** me off. Any help would be greatly apreciated. I have only been driving it for like 2 weeks since I bought it a month ago, I hope this is not a sign of how things are going to go with this car.

flubyux2

Playin, (and anyone else) if u got that big of a prob w/ flooding, a temp fix is to wire in a fuel pump switch like mentioned above.

all you have to do to keep it from flooding, is to switch off the fuel pump when u park,and let the engine die, this will depressurize ur fuel system, and the fuel wont leak out as much, if at all.

then, turn it on when u wanna start it, and if its STILL flooded, then u can turn it back off and crank till all the excess fuel is burned off (same as removing EGI INJ fuse only easier)

to SOLVE this problem for good, get your injectors cleand/balanced/blueprinted at RC Engineering. its 100 for a set of 4. they are REALLY good, professional race teams rely on them.

check it out.

chris

PlayinW/Wankel

Thanks for the info flubyux2, I think I will try that, but i have a couple questions. Can you point me to a write up on how to install a feul pump shut off switch, I aints to goods wit dat wirin stuffs. also does RC Engineering have a web site, and what exactly do they do when they Clean/balance/blueprint? I got the clean/balance part down, but what is blueprinting? Also how long do they take to do it? Thanks again for the help.

akageals

Guys,

It's been said a million times on here "could be low compression".
But.....that said most of the time it's just leaking injectors. The fuel pump switch is most easily installed into the fuel pump relay. The wiring harness plug for the fuel pump relay sits right beside the steering column under the dash. If I remember correctly it has 5 wires. Just cut the middle wire and wire in a switch. I'm going to try to take a pic. . I'll post it in a few minutes. I chased this problem for months on my TII. I had the injectors rebuilt and they still leak. I can tell you how to pressure test for leaking injectors per the FSM if you want.

Todd

akageals

Here are some pics. I mounted the switch in an unused accessory cover in the center console but you can mount it anywhere (only problem is the g/f hit the switch once while driving). As I said the middle wire on the relay by the steering column is the one where you want to put in your switch (sorry the pic is blurry but it's night here and the dig. camera does not do well at night, plus I had to guess on the focus because it was under the dash.

akageals

Here is the fuel pump relay. The red wires go to the switch.

Todd

PS. I cut the engine off with this switch and then leave the switch in the off position to start it then turn switch on once car is running (starts right away now). Somehow the fuel system repressurizes after about 15 minutes and it will flood if I try to start with the switch in the on position. Anyway...after a little practice on when to use the switch my car starts within one second every time, been using it for over a year now.

Todd

momar

Is the wire below the steering column or in it? I'm not sure where the wire is and I would like to install the switch.

akageals

On my '87 TII it's located directly beside (on the right if you are sitting in the car) the steering column. I don't think it is actually attached to the column. It's the only plug in that area that has 5 wires. I THINK the middle wire black/white, that's the one you splice the wire into.

TOdd

akageals

Thought of one other thing. If you are not sure it's the right plug just start the car and then unplug the connector. The engine should run for a second or two and then shut off (due to no fuel pressure). If the engine does not shut off you know you have the wrong connector.

Todd

tesla042

Yeah.. It's just to the right (sitting), of the steering column.. I believe the connector is yellow. It's a 6-wire connector, but only 5 are used (some are doubled up.) The wire you want to cut is in the middle (there's only one in the middle), and it's white/black. Just put a switch in series with it.

-Tesla

flubyux2

yea, the fuel switch like the guys said will work for sure. youll have to figure out how to use it the right way, and itll work every time.

you could fix the problem in the FIRST place, and save yourself from hacking up your wiring harness. i know whut u sayin when u dont know about wiring. sometimes it gets complicated.

'blueprinting' means that they measure every moving part, and the size of the hole that part sits in down to the .000 of an inch. thats to make sure everything is within factory specifications, and that itll work like it supposed to.

us piston engine builders do the same thing. we measure pistons, bores, cranks, rods, and all their mounting surfaces down to the thousanth of an inch.

chris