Jusrollin1

First let me say I've just got done putting in a fuel pump/driveshaft/fuel filter/ spark plugs. ok first this car has been sitting god knows how long since the plates expired in 97 i bought it for 150 and just dropped another 150 into it. Now my problem is i can't get it to keep running. I can get it to turn over and both rotors have compression, and i'm getting spark and can even get it to start just not stay started or run.

what it does is turns over.. jerks back on the starter anywhere from 1 to 3 times starts up, rev's to 1.5 grand on the tach then dies as if it's not getting any spark or not getting any fuel however when I pull the plug it's wet so it's not that and the spark plugs spark when I turn it over... i've already fixed all the wires that I can see are frayed or broken except for the add coolant sensor ( accursed annoying THING) I DO have the fuel pump on a switch since the original fuel pump power line wasn't giving my new in line pump any juice Also i rinsed out my gas tank becuase the lining inside it had dried up and had chunks (along with rust) floating around. If anyone has ever had the same problem i'd like to know how they fixed it before i takea sledge hammer to it ...( 2 FULL days of nothing but working on the damn thing and this is all i have to really show for it )

YearsOfDecay

DUDE... Coooooooollllllll Down......

First off... the parts on that car are worth ten time more than what you paid for it... so you haven't lost anything yet..

Two..... Do an ECU check... I had one that did the same thing, the ECU turned out to be fried and it would start and fall on its face anytime the gas pedal was even breathed on!!!!

Next.... we need to know what year the car is....

Also.... if its kickin back on the starter.... that could be a timing issue.....

It starts and you have compression... those are GOOD things!!!!

What type of fuel pump did ya put in it?????

Chill out... there are enough rotor heads here that you'll get it eventually!!!

Jusrollin1

it's a 1986 RX-7 SE that's probably been sitting for 6 years..( most likely has considering the original fuel pump had a centimeter of rust on it) THe fuel pump i'm using right now is an inline federal mogul fuel pump. The guy at O'reilly's said it has the same specs as the stock in tank fuel pump. Two i'm not touching the gas pedal until after it dies cuase it's flooded also it sometimes will start up with the throttle wide open but it still dies at 1.5 grand so tomorrows i'm thinking of picking up a friend and towing the crap out of it and make it run at a higher RPM level. ALso i forgot to mention it's back firing and blowing flame out the exhuast manifold ( since i don't have the full exhuast when i bought the thing) that would put the cars on fast and the furious to shame.( i got a charred crater in the ground to prove it..

skydivr73

yeah--give us more info, and also if there are any other mods that you know of in there....the fuel pump could be something, since the stock pump supplies more than enough fuel to a stock engine. If you put in a higher flow pump, then you could be pushing too much fuel and flooding the **** out of it. That will only make things worse as your plugs foul and you lose compressiondue to flooding. and like he said man, cool down..you got that SE for a STEAL, and even if you decided to part it out you would come out WAY on top. I paid 300 for my GXL and have the flooding problems all over the place, but its just a matter oftime before I find out what will fix it. I have done all the unflooding tricks in the book, and now I am pulling out the injectors to have them serviced. Even with all the cash I have spent in parts, this was still a bargain, and it is too cool to drive.

Go get a Haynes manual at your local parts store--13 bucks, and WELL worth it. Who knows??---you could find out you just have the spark plug wires in the wrong places or something...a lot of times in here we find out that what we have is a small simple thing instead of a major problem!! Also--when it starts, does it run smooth for the little bit before it stalls, or is it rough?

ViperKillerWannabe

Do you have an autozone near you? If you can, take it there and have them check the ECU for codes. It could be something as simple as that.

YearsOfDecay

Don't but the haynes manual.... go to teams fcs3.org and download the factory servicec manual for it!!!

http://www.teamfc3s.org/main/factory...ual/1986_1988/

YearsOfDecay

DON'T town the crap out of it..... won't fix it....

you're definately getting too much fuel in there though..... HEY..... is the vaccuum line hooked up to your fuel pressure regulator???? that thing might be bad.....

YearsOfDecay

DON'T tow the crap out of it..... won't fix it....

you're definately getting too much fuel in there though..... HEY..... is the vaccuum line hooked up to your fuel pressure regulator???? that thing might be bad.....

skydivr73

don't bother trying to do this.....it's an S4, which means the ECU doesn't store codes. the only way you could pull a code is if the code is set while the car is running and you leave it running to check. as soon as you turn off the car the codes are cleared. Since you can't keep it started, this is of no use right now.

Go get that haynes manual and read the book...In the front there is a troubleshooting section. Look in there for "engine starts but stalls immediately" and this should give you some starting places.....and keep us posted if things change so we can help you on the right direction.

Jusrollin1

Well if it ran longer then two seconds.. however it rev's smooth except at 500 RPM it jerks the front end of the car from side to side however it revs up past that rather smooth .. Autozone.. near me? nearest place has a napa store and oreilly's store.. and both of them only sell chiltons ( not worth paper they are printed on i might add) also after going through the chapters with a fine tooth comb and staring and the picture diagrams for over and hour each i'm fairly sure the spark plugs are in the right order.. ( tops are trailing bottom one's are leading right? if not.. i'm burning my chiltons book at the next party i go to to start the camp fire..) also i put everything back in the way i pulled it out. ANother thing i am fairly sure i forgot to mentin.. is that the person who drove it before me let their girlfriend drive it and she twisted the driveshaft and split the tranny it has an 85 rx-7 tranny in it that was probably from a early production release like the 2003 cars being sold in 2002 also got a driveshaft with it.. so what was broken got replaced before i purchased it. ( sounds like a throw in reverse from 3rd gear) also i'd like to cool down but 2 days of straight work and nothing to really show for it sure does get frustrating..

YearsOfDecay

oooohhhhhhh.... wow..... after learining about the driveshaft.... Whew, that car took a whalloop... Sky is right though.. sorry about the bad info.. haven't worked on a pre 89 in a WHILE!! Lead is Lower Trailing is top.... Make sure you got the right rotor for the coil too (sounds stupid i know, but people have done it)

Jusrollin1

T1 and L1 go to the back rotor housing and T2 and L2 go to the front rotor housing RIght? if not .. my timing's off 180 degree's and the fuel pressure regulator on the fuel rail is hooked up.. however my pressure sensorthat hooks up to the manifold ( the one right above and behind the filter box) isn't hooked up becuase the little plastic peice that sticks out busted. if that's cuasing it i'm going to scream.. then bang my head on a wall.. then sit down smoke a cigarette and figure out how to ghetto rig it.. also i already tried adjusting the timing.. that sensor thing wouldn't move for super man! however i'm going to be replacing wires tomorrow since the wires on it aren't exactthe best for wear. Also if any place around here sold a haynes i'd love to get one.. however none do so if someone could look it up and toss me some info i'd very much appreciate it

Jusrollin1

bump

Jusrollin1

Bump again, Alright before i bump it again i'm gonna switch my wires around after i get out of school and renew my license THEN see if it works... if it does yay for me.. if it don't.. i'm bumping this post again and gonna nag at some people to look in their haynes since i'd have to DRIVE AN HOUR AWAY TO GET ONE!

Jusrollin1

ALright Update.. I got new wires in and new plugs and it decided now that it doesn't even want to start.. I looked in my chiltons for about 30 minutes looking for where the wires should go and stared at the picture for quite a while wondering if the one meant L1 and T1 or front rotor... and after coming to the conclusion that it means the L1 and T1 spark plugs i hooked the wires up in that order.. turned on my fuel pump and proceded to crank the car over for about 30 minutes in about 30 second intervals. and nothing but the usual sound of a rotary with nothing but an exhuast manifold the sound of compressed air being forced out the exhuast.. SO ! tomorrow i'm gonna pull my plugs and mark sure they didn't get fouled out from the starts we tried last time ( I think i now know why it died is becuase the wires where hooked up backwards.. L1 and T1 on the rear rotor and L2 and T2 on the front.. but at least it friggin started and turned the right way!) And i beleive i'm going to be cleaning my crank angle sensor connections as well as my coil connections tomorrow too along with my grounds and shoving pipe cleaners all the way down my fuel line to make sure nothing plugged it. and if none of that works i'm going to grab a pop rivet cut off one end.. heat it up and stick it in my pressure sensor so i can ghetto rig it to work.. ( YAY! a ghetto RX-7.. wonder how many of those are runnign around..) and if none of this works.. i'm gonna get severly PISSED

SOIA

I realize this thread is old and you probably have it running now but I'll give my two cents anyways. Check the mass airflow sensor(see attatched pic, if you still have stock airbox you'll have to remove it) if it's been sitting for that long check to see if the flap inside still moves freely if it does, proceed to check the connector if it isn't connected properly your car won't run or it will run like ****, take a good electronics cleaner and spray both ends of the connection, let it dry, reassemble and good luck!