rx7babygurl85

ok!... im trying to figure out what im doing wrong or if my problem isnt what i think it is?.....

ive done this unflooding procedure http://rx7.com/tech/unflood-fc.html

ive done this procedure about 4 times now, and the car will turn over and start and then will NOT hold and idle and then just die, and then try to start again, as u keep cranking it, a friend of mine told me that i could use 2 stroke instead of ATF when doing the unflooding procedure.. would that might be a problem there?..

ok heres what happened and why i think that its flooded i was parked.. to go into the store to get something came back out to leave.. and see a few cars (hondas) speeding around and thought that id join.. and tell them they stuck... well i totally got owned by my car.. i started it, (it started like normal & the car is warm) pressed the gas.. (probably more then i should have) and then it died!.. and wont start now!.. it cranks and wants to start......


this is what im doing to unflood it...
1. pull egi fuse
2. pull spark plugs (all four)
3. crank engine, with foot holding the gas pedal to the floor, untill i see that its not misting gas anymore
4. put an once of 2 stroke into the 2 lower spark plus holes
5. put spark plugs back into place, with the wires etc..
6. put egi fuse back
7. crank engine without touching the gas...

WTF ? why isnt my car starting!!!

Boostmaniac

did you clean and dry the spark plugs?

Dry them off and then put them back in. Crank it over a bit and if it doesn't start, pull the plugs to see if they are wet again. if they aren't to bad, keep trying the egi fuse pull and crank w/out the 2 stroke.

Rotary_Rocket_87

I have had quite a bit of trouble with flooding in my T2. All I do is have a buddy crank the car after I have unplugged the fuel pump. Eventually the engine will expel enough of the fuel to fire over, and when it does I quickly plug in the pump. Seems to work great for me.

eriksseven

iTrader: (6)

As soon as your car fires after doing the unflooding procedure, you'll probably need to give it some gas to help it initially idle. Do your best to keep the revs below 3k RPM's and drive it around for about a minute before "testing" to see if it'll hold an idle on it's own.

You also really don't have to remove the top two plugs to unflood the engine.

Also, I would do the unflooding procedure and then compression start the car. (or rolling start, clutch-start, or whatever else you call it). This is by far the easiest and most "potent" way to get a flooded/low-compression engine to start and run.

If I were you, I would also install a fuel cut-off switch ASAP. This way if you ever have hot-start issues you can roll your eyes, flip a switch and start your car. It's VERY cheap and easy to install (less than $10 and takes 15 minutes).

rx7babygurl85

ok.. ive tried this.. and im running into the same problem but actually it come closer into starting when i use the 2 stroke.





im doing this alone. and i have no one avaible to help me

rx7babygurl85

ok.. i cant even get the car to idle at anything!.. i give it alil gas and it does the same as though its still alil flooded..?? there fore i cant drive it.. its an auto.. cant push start it..

eriksseven

iTrader: (6)

Ok... Well, have you actually gotten the car to fire and start? If so, you need to immediately give it gas and keep the revs up to not let it die. Once you've gotten it to hold--then start driving it around and see if it still wants to die after a couple minutes.

Also, it might help if you got another car to give you a jump while you're cranking--to help with the cranking speed and give you a better chance.

If you still can't get it to start after repeating the unflooding procedure several times, then I would consider installing a fuel cut-off switch right where the car is sitting, so that you don't have to keep on pulling the fuse etc.

Rotary_Rocket_87

Yeah, there are times when I have no one to help me.

Boostmaniac

My friend is always there. I call him my fuel cutoff switch.

topspeed7

it sounds like u have a bigger problem than flooding. at my shop ive worked o many rx7s
with this problem and this is what the solution has been in different cases

1 electrical short in harness
2 vaccum leaks
3 bad or loose tps
4 bad airflow meter
5 bad ecu
6 bad or leaking injectors

good luck man

spot_skater

Did it run fine before this? Did you minorly flood it?

Whenever I minorly flood my engine...IE not let it crank long enough to turn over...I do this:

1) Pull EGI Comp fuse
2) Give 100% throttle while cranking for 8-10 seconds
3) Replace EGI Comp fuse
4) Give 100% throttle while cranking

She starts up, I get off the throttle and let her warm up.

Best of luck.

rx7babygurl85

ok this is gonna seem like a stupid question but, im gonna ask anyways.. how can u tell when ngk spark plugs are bad?... im gonna take a couple of pics of my spark plugs here in a bit and and let me know whatcha think...

J-Rat

iTrader: (2)

If they are black and gunked up, or if the center electrodes are eroded down.

jeremy

iTrader: (1)

if you have an s5, pressing the pedal to the floor cuts the injectors during start up.

deadRX7Conv

None of the rotaries that I've owned or worked on had flooding issues. All were always in tip top state of tune.

Replace any of these parts if more then a year old or generic brand:
New plugs/wires/fuel and air filter.
Set your TPS/Timing/Idle. When done, IMO, an extra several degrees of timing will reduce that flooding issue. Also, an extra 100-200 rpm at idle can also help.

Get a rotary compression check. Nothing but a rebuild will fix a compression related starting problem.

Carry a can of ether starting fluid. There is a nice big vacuum hose that'll enjoy a 5 second ether shot if it floods.

Clean your wiring harness. This includes battery/alternator cables and all grounding points.

The Rx8 has a TSB for starter/battery/plug replacement to cure its ailment similar to ours. Make sure that your battery is in good condition and that your starter is spinning the engine fast enough.

Remove and test your oil injectors per the FSM. Replace any that are bad.

Also, make sure your port sleeves are working. I found that my engine starts easier with the sleeves closed vs stuck open. If your 6-port aren't actuating, might be a good time to pull the intake for cleaning.

Run a bottle of fuel injector cleaner in your next several tanks of gas.
Vary the brands but stick with name brand stuff like Regane/Techron/Amsoil/Redline/Lubromoly/Seafoam..........

Switch brands of gasoline. Stick with busy gas stations.

I hate the unflooding procedure. It also doesn't help that my antivirus program won't let me look at that link.

Also, do this when shutting down your engine. Rev the engine to 5k rpm and then cut the key.

HAILERS

I was wondering when and IF anybody was going to advise you that the S5 will cut fuel if you just hold the pedal to the floor. So no need to pull EGI fuses etc.

How that works (cutting fuel on start with the pedal to the floor) I know not how. Unless it's a part of the tps signal plus the START signal that is sent to the ECU.

And as we all know by now, the afm has nothing to do with the mixture during a Start cycle. There's a preprogrammed Start map in the ECU dependent on rpm, start signal and water thermo temp signal.

I've no idea why your car floods though. Low compression, in need of a tune up etc. Who knows.

rx7babygurl85

this is the 1st time that my car has flooded (and ive owned it for 5 years now) i havent worked on it in a cpuple of days.. so tomorrow. im spending the day workin on it.. and hopefully i can get it going!

arghx

iTrader: (3)

Did you turn off the A/C ?? My car was down for 3 weeks for some repairs, and it had flooded, and when I started it up it wouldn't idle for ****. I turned the A/C off before starting it and it was just fine. I think the BAC (which helps control idle) valve was somehow messed up for a second.

spot_skater

It's called fuel-cut mode. After about 80% throttle the ECU recognizes it and completely cuts fuel.

FYI most all newer cars have it...

Your thoughts on it are basically right.

poncho

I can help if you want I working in rotary engines for 10 years .I have good experence let me know I'm mechanic .I live in Overland Park.