My 1983 Mazda RX7 cranks but wont start. Its getting fuel and weak spark

Tiny
WILLIE BAILEY
  • MEMBER
  • 1983 MAZDA RX7
  • 114,000 MILES
The car sat for five years. The fuel pump is ok. The carburetor is getting fuel. I swapped the coil, plugs, distributor cap, and rotor with good ones from my 85. There is spark, weak to the plugs
Do you
have the same problem?
Yes
No
Tuesday, November 22nd, 2011 AT 5:19 PM

11 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Check crank sensor.
Was this
answer
helpful?
Yes
No
Tuesday, November 22nd, 2011 AT 5:23 PM
Tiny
CADIEMAN
  • MEMBER
Pour gas in the intake. Does it start?
Was this
answer
helpful?
Yes
No
-1
Tuesday, November 22nd, 2011 AT 5:42 PM
Tiny
WILLIE BAILEY
  • MEMBER
The plugs are wet, it's getting gas. The spark is present at the plugs, just weak. I can not find a crank sensor in my Mazda book or on lie. Where is it located?
Was this
answer
helpful?
Yes
No
Tuesday, November 22nd, 2011 AT 6:49 PM
Tiny
CADIEMAN
  • MEMBER
Im done have fun
Was this
answer
helpful?
Yes
No
-2
Tuesday, November 22nd, 2011 AT 10:04 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
See attached
Was this
answer
helpful?
Yes
No
Tuesday, November 22nd, 2011 AT 10:19 PM
Tiny
WILLIE BAILEY
  • MEMBER
My car is a 1983. It does not have a crank sensor, it has a distributor. The wiring diagram is not for a 1983.
Was this
answer
helpful?
Yes
No
Wednesday, November 23rd, 2011 AT 1:47 PM
Tiny
CADIEMAN
  • MEMBER
Did you do what I asked?
Was this
answer
helpful?
Yes
No
-1
Wednesday, November 23rd, 2011 AT 8:21 PM
Tiny
WILLIE BAILEY
  • MEMBER
I poured gas in the carburetor, did not crank, all four plugs are wet. I checked for fire from both coils. The leading coil is producing a stron spark, the trailing one nothing. The car turns over fine, does not attempt to light off. Will it attempt to light off with only one coil? I was going to swap the igniters, attached to the distributor, with the ones on my 85, the 85 has aftermarket igniters. Help?
Was this
answer
helpful?
Yes
No
Wednesday, November 30th, 2011 AT 2:59 PM
Tiny
CADIEMAN
  • MEMBER
Pull a fuel sample and see if its good gas. No smell or 2 different fluids in the jar. If ok then replace the fauly bad coil.
Was this
answer
helpful?
Yes
No
-1
Wednesday, November 30th, 2011 AT 5:27 PM
Tiny
WILLIE BAILEY
  • MEMBER
The fuel is new. I swapped the coils, didn't fix the problem. I swapped the ignition igniter, they are mounted on the distributor housing with two smal screws. The no fire condition went from the leading coil to the trailing one. A new igniter cost more than $200.00 dollars. Do you think this is the problem. Once again I have changed the coils, plug wires, distributor cap and rotor, spark plugs and all four plugs are wet with fuel. What do you think?
Was this
answer
helpful?
Yes
No
Thursday, December 1st, 2011 AT 4:37 AM
Tiny
CADIEMAN
  • MEMBER
IF THEIR ARE 2 INGNITORS AND THE PROBLEM SWITCHS COILS WHEN U SWAP COIL INGNITORS. IF BOTH COILS ARE NEW. YOULL HAVE TO REPLACE THE OTHER INGNITOR. ALSO CHECK FOR THE DIST. ROTOR FOR TURNING WHEN CRANKING.
Was this
answer
helpful?
Yes
No
Friday, December 2nd, 2011 AT 2:32 AM

Please login or register to post a reply.

Recommended Guides