89 GXL won't start-new guy
Senior Member
Joined: Mar 2004
Posts: 485
Likes: 0
From: AZ/CA
The old plugs DID smell like gas. I didnt do the rear... (NOTE TO ALL: R0meo021 is Blonde).. lol, I will do them now. They sounded fine is the reason I didnt use the tester.. That thing is a bitch to get in and out.
OK, the rear rotor compression test (one closest to the firewall)
Hold in button: Max around 65-70 (which is the same as before, I read the gauge wrong.
MAX PSI:115-120PSI
NOW WHAT...lol
Hold in button: Max around 65-70 (which is the same as before, I read the gauge wrong.
MAX PSI:115-120PSI
NOW WHAT...lol
MAF control: plug looks brand new... Im not sure if this torpedo thing works or not, but it appears to move fine when I push it manually. leaving now to purchase a fuel filter....
Last edited by r0meo021; May 13, 2007 at 03:56 PM.
I feel like I'm talking to myself... Hey self..... Anyways... I changed the fuel Filter and still no luck.. I was a little confused on the installation of the fuel filter. The one I removed had the side that said "IN" going to the engine. Common sense tells me this side should be the line COMING FROM the fuel tank! I dont know, but whatever. I hooked it up that way and it still doesnt start. You guys have any nifty tricks on testing Spark and the fuel pump. Thats about all I can figure is left to be wrong with it.
Thanks in advance to anyone that posts just to keep me from thinking I am talking to myself...lol
Thanks in advance to anyone that posts just to keep me from thinking I am talking to myself...lol
whats up guy?
You aren't talking to yourself on here...theres just a lot of people on here that will see your post, read your post, know exactly what to do with your car, and not tell you because its a waste of their time but just to let you know...if it makes you any happier, I have an 87 that doesnt want to start either...compression is excellent. has about 208,000 miles on it...and i've tried everything...still wont start...im draining my battery every time i try to start her...but luckily theres a local ROTARY-SPECIFIC shop around here that is coming to take a look at it tomorrow...I will post to let you know what they say about mine. peace. Oh, and if you get yours to start, let me know as well!! cody205@tmail.com
Thanks man, I will keep you posted. I am a member of Dodgeintrepid.net, and we have people that would walk out to their car and take pics just to answer some simple questions. If this forum had a "How-to" section that covered simple things like "fuel filter How-to" and everything else I have done... I wouldnt have to ask stupid repeat questions. Thank you to everyone who has helped me, I wont forget you. TO the rest of you... You were ignorant of the RX7 at one point and I doubt you got your knowledge by having others ignore your questions. No hard feelings though...
You need to check for the most basic things needed to start a car.. Spark and fuel.
I always start with fuel. Easy test. Pull the fuel feed off the 2ndary fuel rail (at the rear of the motor on the passenger side)
Have a freind turn the key on.. Is there gas shooting out? if so you can assume the pump is functioning.
So move on to spark. pull the spark plugs, one by one plug them into the plug wires and have a buddy crank it as you ground out the plug on the chassis. look for a strong spark. (hold the plug with insulated pliers.)
That will tell you if you have spark.
If you have both and it still won't start try towing it to a start, my current rx-7 sat for 3 years before I started it. I had to pull it for 1 whole mile before it finally kicked on. (in 2nd gear btw) and it's starts /runs fine now...
I always start with fuel. Easy test. Pull the fuel feed off the 2ndary fuel rail (at the rear of the motor on the passenger side)
Have a freind turn the key on.. Is there gas shooting out? if so you can assume the pump is functioning.
So move on to spark. pull the spark plugs, one by one plug them into the plug wires and have a buddy crank it as you ground out the plug on the chassis. look for a strong spark. (hold the plug with insulated pliers.)
That will tell you if you have spark.
If you have both and it still won't start try towing it to a start, my current rx-7 sat for 3 years before I started it. I had to pull it for 1 whole mile before it finally kicked on. (in 2nd gear btw) and it's starts /runs fine now...
You mentioned that you did change the fuel filter, when you pulled off the line that came from the tank, did the fuel constantly run out and seem to never stop? I'm asking this because if you remove that line without depressurizing the line, it will flow all the time.
If you didn't depressurize the fuel system and you pulled off the fuel line and no gas flowed out, you might want to check the fuel pump. It's along the same thing RRTEC suggested, but since you already replaced the fuel flter, you would've noticed that.
If you didn't depressurize the fuel system and you pulled off the fuel line and no gas flowed out, you might want to check the fuel pump. It's along the same thing RRTEC suggested, but since you already replaced the fuel flter, you would've noticed that.
Yeah the fuel should've came out without and help since the line would've been lower to the ground than the tank, i've always had to plug my line with a screw drive while changing the filter.
Also, there is a yellow plug by the afm, use a wire to connect the two wires in there together and turn the key to on and see if you can hear the fuel pump, if you can hear it, try to start it.
If it still doesn't start it may be flooded.
Also, there is a yellow plug by the afm, use a wire to connect the two wires in there together and turn the key to on and see if you can hear the fuel pump, if you can hear it, try to start it.
If it still doesn't start it may be flooded.
Yep, fuel went everywhere until I got the bright Idea to clamp it off with some vice grips(using light pressure). Its friggin crazy what gas will do to asphalt!!! its turns it into mush!
ok thanks the spark is good but my compression is about right my MAF however is boned cause the guy my RX off of had a cold air and removed it and didnt put all the parts back X.x but im gonna check the fuel filter next it should be fine but you never know
Senior Member
Joined: Mar 2004
Posts: 485
Likes: 0
From: AZ/CA
Assuming you have done the following correctly....
1. Compression test
2. Spark test
3. Fuel pressure/pump test
In essence you will have a working vehicle. If you still cant get it to start after a tow start (bump start, push start, all the same), then you just have to find out WHAT secondary engine control component is malfunctioning. Be it your ECU, Air leaks, vac leaks, crank angle sensor....
give us the update on what exactly you've tried, changed, and troubleshooted...
1. Compression test
2. Spark test
3. Fuel pressure/pump test
In essence you will have a working vehicle. If you still cant get it to start after a tow start (bump start, push start, all the same), then you just have to find out WHAT secondary engine control component is malfunctioning. Be it your ECU, Air leaks, vac leaks, crank angle sensor....
give us the update on what exactly you've tried, changed, and troubleshooted...
when i got my 86 it was flooded horribly, we used the same techniques listed here, except for we had another car jumpered to the battery so that it would get full juice to crank over. If you haven't had a friend help you with this try it. just hook up jumper cables from his car to the rx and have him rev his car to around 3000 rpm while you are cranking it. It takes a while to get this, but the white smoke more than makes up for it.
One other thing you might want to look at is the ECU...it's located under the carpet on the passenger's side of the car under the dash. take it out and open it up to see if you have any burnt parts or traces. I was informed that the '89 had a tendency to fry the ECU at times. It was on this knowledge that I pulled mine in my vert and found that it was completely water damaged beyond repair. Luckily I had a parts car and that ECU was fine, car runs like a champ after replacing it.
Since you have fuel pressure and you hseem to have decent compression and I'm not sure if you tried the spark test, but pull your EGI fuse, put a spark plug into your spark plug wires(one at a time) and have someone crank the car to see if you are indeed getting spark.
If you get spark from all four plug wires, then I'd start looking at your crank angle sensor. Take your multimeter and ohm the plug coming from the sensor. If I recall, the two on the left of the plug are leading and the others are the trailing. They should read somewhere between 110-210 ohms.
You should really pick up a manual, it tells you how to check every sensor and where they should read. Believe me, buying mine helped me out a ton.
Since you have fuel pressure and you hseem to have decent compression and I'm not sure if you tried the spark test, but pull your EGI fuse, put a spark plug into your spark plug wires(one at a time) and have someone crank the car to see if you are indeed getting spark.
If you get spark from all four plug wires, then I'd start looking at your crank angle sensor. Take your multimeter and ohm the plug coming from the sensor. If I recall, the two on the left of the plug are leading and the others are the trailing. They should read somewhere between 110-210 ohms.
You should really pick up a manual, it tells you how to check every sensor and where they should read. Believe me, buying mine helped me out a ton.


