DC350

My car does not start. It just spins, starter is really loud. Doesn't sound like i'm gettin spark. Although the tach is bouncing. I smell gas, so i know its gettin fuel. And the engine is cranking.

I check for codes. The lights turn on for 3 seconds and then there are no codes. Obviously there should be codes. Before the pressure sensor was flashing. Now no codes? What the hell! this is my last resort. Code checking. I even switched Ecu's No codes.

PLease help me!!

evan

Turbonut

iTrader: (1)

Evan-Pull 1 leading plug wire off and ground it. See if any spark.

nashman69g

iTrader: (3)

sounds like a common flooding problem and not a code problem...

Project84

Is it flooded? Try using a timing light to see if you are getting spark.

HAILERS

Next time you check for codes, and get the lights for the three seconds, walk over there and pull off the boost sensors electrical plug or the air temp sensor on the dynamic chamber or the afm plug. You should now get codes to prove the ECU can put out codes.

With that car, I'd pull the fule pump plug off. Leave everything else in place. Spray starter fluid in the snorkel and crank the engine. It should start for a few moments. BE sure to hold the pedal all the way down. Try a couple of times. Even with a fairly large vacuum leak you'll get the engine to fire up momentarily. If it does not fire up....then the problem is most likely a firing problem....although I did see that the tach needle did the small bounce thing you mentioned which shows it does get fire...at least on the trail. The car should start even with only the trail operating. Just will run irregular.

Timing????

hugues

it really sounds like it is flooded. Assuming you have spark, take the spark plugs out, if they are soaked in gas, the good news is you have fuel, the bad news is that the engine is flooded.

If flooded, do a push start or follow the procedure that's floating around.

Hugues -

DC350

Update: I took out the injector fuse. Cranked for 10 seconds, pause... Cranked for 10 seconds, took out the plugs. Plugs were gassy. Cranked engine over with plugs out. Put plugs back in. Turned engine over. Same problem. Plugs coated with gas again. Did the same procedure. Put the spark plug up to the window to check for spark No spark... Ok.. Hey! The lights are flashing. Funny thing is i couldnt tell which codes it was dispensing.... I counted 6 codes before i got confused again....

Did i knock a ground off or what??

Btw: Thanks for the help so far

DC350

bounce

HAILERS

NO spark??? Check the ENGINE fuse in the crew compartment then the fuses in the engine bay. The two most inboard fuses in the engine bay. I think they are 30 and 40 amp fuses.

Odd though. You saw the tach do a small bounce while cranking the engine over??

Fuses good?? Get the meter out and turn the key ON. Go to the LEAD coil assy. Disconnect the small white, two wire plug. One lead to a good ground...the other to the black/yellow wire. Should be battery voltage there. No voltage??? Bad fuse or wiring problem or main relay.

HAILERS

If the fuses are good, and 12v is at the small white plug.....stop doing the fuse removal bs. Pull the plug off the fuel pump. Spray starter fluid into the snorkel. Hold the pedal all the way to the floor. Crank the engine. If there is any spark, the engine will momentarily go varoom......a sound you have not heard in some time. If the engine does not go varoom after several tries of spraying......go back to the lack of spark theory. Although if you saw the tach bump as you cranked...that indicated the trails at least were sparking or should have been sparking.

DC350

i'll do what u say right now hailers... But inthe mean time i took out all the plugs. turned engine over MADE sure the combustion chambers were free of gas, cleaned off some carbon-build up on the plugs. Put the wires back on the plugs.... it ALMOST started. tach WAS jumping and there is plenty of fuel.... Can the car run on just trailing igntion?

Could the Leading pack be gone bad??

I'll update on the progress with the info you've given me hailers.

Thanks alot.

Evan

DC350

There seems to be power the to small white plug at the lead assembly....

Spraying starter fluid in the snorkel will make sure that the engine is gettin fuel? I think the lead coil pack could be fubed... I just read that it should start with just trailing... Thats what i thought...

Which snorkel are you talking about? and the plug on the fuel pump? or the fuel pump fuse?

The snorkel which takes the air in for the engine? or from the fuel tank... Kind of confused here...

hikerguy

I had the same problem and it turned out to be dirty plugs and my timing was off. Although the engine might run on trailing spark only, I doubt it would start(although I've never tried). Go buy an induction timing light which is the best way to see if you are getting spark to the plugs and will be needed to check/adjust the timing anyway. My experience with rotarys is they are very sensitive to spark plug condition. In my opinion, if the center electrode post on your plugs has worn away to the point that it doesn't extend to the end of the plug, it's time for new plugs.

DC350

The plugs are faily new...... say 15000 km's.... The center electrode does stick out to the end of the plug....


Which is the engine fuse in the crew compartment?

HAILERS

The idea is to spray starter fluid in the air intake. As in just prior to the air filter. I call that piece of intake prior to the air filter assy tne snorkel.

You want to take the fuel pump plug apart to disable the fuel pump so it will not flood the car or have any influence at all.

Then you spray the fluid prior to the air filter. Then floor the pedal and crank the engine.

IF the car starts momentarily.......then you know that the ignition system is not the fault. How else would the engine start? Right. So if it does start using starter fluid, with the fuel pump disabled, then you know for sure that it's a fuel issue and you can concentrate on fuel instead of fuel and ignition.

HAILERS

ENGINE FUSE.....Looking directly at the fuse box. Third row from the bottom. Second fuse on that row counting from the left. https://www.rx7club.com/showthread.p...ght=fuse+cover

DC350

Thanks alot hailers.. I towed the car around the block trying to start it in 3rd and 2nd gear.. It ran really really rough for a while...after it started it, the alt connection was loose... But it was just a combination of things... fixed now and seems to run alot better after i cleaned the plugs...

I really dont know what happened...
evan