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T2 RX7 No start, fresh rebuild, Link ECU

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Old Jul 14, 2015 | 02:26 AM
  #1  
Bradn's Avatar
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From: New Zealand
T2 RX7 No start, fresh rebuild, Link ECU

Hey guys,
I've just put a link ecu in the car but can't seem to get it started.
- Have spark
- definitely fuel there
- Just adjusted timing with a timing light - set manually then changed offset in ecu
- tried de-flooding procedures


spent days googling and trying options with no luck, cranks forever without even a pop.

Any ideas?

Cheers
~B
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Old Jul 14, 2015 | 07:39 AM
  #2  
misterstyx69's Avatar
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From: Smiths Falls.(near Ottawa!.Mapquest IT!)
We do have a LINK section on the Forum but it is small.
I found this thread,.,look at post#4 and maybe try the "link" to the Start up map??
https://www.rx7club.com/link-vi-pec-...el-map-977234/
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Old Jul 15, 2015 | 04:10 PM
  #3  
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From: hella nor cal
You may have fuel at the front of the injector, but not after the injector.

I recommend:
Pour some lacquer thinner, about 2 ounces into the intake, just like into the power brake port, or even into the throttles. If the car fires up, or does ANYTHING good, then you know you have spark, air, and semi-correct timing.

If not, then you -may- be getting fuel, but wrong timing.
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Old Jul 15, 2015 | 05:06 PM
  #4  
roTAR needz fundZ
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From: Freeland, MI
Originally Posted by hellabad
You may have fuel at the front of the injector, but not after the injector.

I recommend:
Pour some lacquer thinner, about 2 ounces into the intake, just like into the power brake port, or even into the throttles. If the car fires up, or does ANYTHING good, then you know you have spark, air, and semi-correct timing.

If not, then you -may- be getting fuel, but wrong timing.
why not just take a can of starting fluid and spray it into the intake? alot easier than laquer thinner
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Old Jul 16, 2015 | 11:05 AM
  #5  
hellabad's Avatar
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From: hella nor cal
Originally Posted by lduley
why not just take a can of starting fluid and spray it into the intake? alot easier than laquer thinner
Good question. Because Lacquer Thinner washes the plugs if they're fouled.
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Old Jul 23, 2015 | 05:29 AM
  #6  
Bradn's Avatar
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From: New Zealand
Originally Posted by hellabad
You may have fuel at the front of the injector, but not after the injector.
what do you mean here?
-there is a strong fuel smell out the exhaust, even if you crank it with the fuel pump only plugged in for a few seconds.

The plugs are new so shouldn't be the problem.

put the stock main pulley on the engine to set timing, although I'm not sure whether this is from S4 or S5 , supposedly the engine is S5. Then adjusted the offset in the ECU using a timing light until was close.

So still pretty stuck
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Old Jul 24, 2015 | 06:56 AM
  #7  
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Drewrx7
 
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From: south jersey
I would do a compression test even though it's a fresh rebuild. And you have spark at all 4 plugs? Are all your grounds properly attached? And the way to tell the s4 from s5 is the water pump housing. 3 bolt s5 2 bolt s4 at the thermostat
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Old Aug 1, 2015 | 10:20 AM
  #8  
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From: Illinois
Why not stick a stock ecu in it and see if it starts. That way you can eliminate the usual suspects, like fuel and compression?
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