SmokinRx-7

problem just started other day... i went to start my car since it is push button start i turn key the push the button and it just keeps turning. after i stop i try again and then it usually works... why is it doing this? The ignition keeps turning over and no fire... then it blurps like it wants to fire then it usually does... This problem is not evident when the car is warm or even sitting for a few hours just when been sitting over night

SmokinRx-7

anyone gunna answer?

areexdrift

my 7 wldo that wen its flooded. but tha wouldnt make sense with yours if it starts the second time

Go48

iTrader: (7)

Sounds like the engine is flooding. Check the spark plugs when it does this. Are they wet with fuel-oil? If so, the engine is flooded. There are many threads that deal with this problem. Search and read. Then figure out why it is flooding and correct the problem.

Remember, never shut down a rotary engine cold. Whenever you start the engine, allow it to fully warm up before shutting it down. Rotary 101.

HAILERS

The water thremo sensor can cause a COLD start problem. If the plug is off it OR one of the two pins in the plug is pushed back and not making contact, that will cause too little fuel during a COLD start.

If the signal is OPEN, the ECU defaults to a temp of 180* F and that temp figure will result in too LITTLE fuel being injected during a COLD start. A hot engine will NOT be effected if that sensors plug if off or one of its two pins pushed back.

https://www.rx7club.com/attachment.p...3&d=1200400936

SmokinRx-7

ok tommorrow morning i will do the same and check the plugs and then pul the EGI fuse and crank with pedal to the floor... then put plugs back in and crank.... do i put gas pedal to floor again?

HAILERS

IF it's a series five car, then you don't pull any fuses to clear a flood. Y0u just hold the pedal to the floor and go to start. What happens is the ECU sees the full TPS signal and cuts fuel to the injectors during Start. Only on series five.

If you rigged a START switch/button and by doing so caused the ECU to not see the START Signal during START, then that would account for a hard starting problem on a cold engine. The ECU uses this signal to deliver fuel during Start. No Signal for Start, means the ECU uses the afm signal for fuel during Start. That mixture is too lean for a cold engine.

So go to the ECU and see if it''s seeing the START signal when the key is held to ........START.

https://www.rx7club.com/attachment.p...3&d=1200400936

And there is another scenario that could be causing your problem. That push switch might be the problem........again. When you go to Start the engine you normally HOLD the key to START. When you HOLD the key to START, the Circuit Opening Relay pulls in which in turn makes the fuel pump run. IF you do NOT hold the key to START when starting, the pump will not run. No run means there is no fuel in the rails.
What MIGHT be happening, is you push to START and you crank enough so that the vane in the AFM pulls back to make the gnd to the Circuit Opening Relay, and then the second coil in the Circuit Opening Relay now pulls in and makes the pump run and supply fuel to the rails.

So to prove this idea, jumper the yellow, two socket Fuel pump check connector PRIOR to trying to start the engine. Turn the key to ON prior to Starting. Let it stay in ON for say five full seconds prior to pushing the start button. Now push the button and see how it starts. If it starts faster, then that is your problem with starting.

SmokinRx-7

yes but it did not do this before hand 0only about a week and a half ago. so any suggestions on wat i should do?

HAILERS

IF you have a series five , there is no reason to ever have to pull a EGI fuse to deflood the engine. Just putting the pedal to the floor should null the fuel injectors and spark will still be there and the engine should start once the excess fuel is sent out the exhaust manifold.

It's supposed to work like that.

SmokinRx-7

ok ill try it tommorrow morning