No Spark Problem...what Do I Do?

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Jun 25, 2003 | 04:54 PM

ckrout86

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Junior Member

Joined: Jun 2003

Posts: 4

My 87 RX7 is getting no spark. I replaced both ignitors/coils, crank sensor, and computer. Any ideas guys?

Jun 25, 2003 | 04:54 PM

1Revvin7

Senior Member

Joined: Oct 2001

Posts: 10,906

From: Peoria, AZ

How do you know its not getting spark?

Jun 25, 2003 | 05:00 PM

ckrout86

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Joined: Jun 2003

Posts: 4

pulled plugs, grounded plug, no spark while cranking. Also stuck finger into igniter and cranked, no spark.

Jun 25, 2003 | 05:03 PM

1Revvin7

Senior Member

Joined: Oct 2001

Posts: 10,906

From: Peoria, AZ

haha, thats dangerous... Well the ecu gets its signal from the Crank Angle sensor. Try replacing/checking that..

Jun 25, 2003 | 05:08 PM

ckrout86

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Joined: Jun 2003

Posts: 4

did it!

Jun 25, 2003 | 05:11 PM

1Revvin7

Senior Member

Joined: Oct 2001

Posts: 10,906

From: Peoria, AZ

whoops... Could also be the wiring harness.. Thats the only thing I can think, did the parts you swapped with come from a running car? I mean can u verify they work properly..

Jun 25, 2003 | 05:18 PM

ckrout86

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Junior Member

Joined: Jun 2003

Posts: 4

tested on my 86.

Jun 25, 2003 | 05:27 PM

Turbo II

omghi2u

Joined: Mar 2002

Posts: 7,259

From: Los Angeles, CA

hmmmm interesting.

Jun 25, 2003 | 05:31 PM

1Revvin7

Senior Member

Joined: Oct 2001

Posts: 10,906

From: Peoria, AZ

I'm callin in back up, I'm lost on this one...

Jun 25, 2003 | 05:34 PM

#10

j9fd3s

Senior Member

Joined: May 2002

Posts: 22,465

From: California

if one leading plug is fouled neither one will fire. they are on the same circuit. basically the cas tells the ecu when to fire the coils.

mike

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