1997 Acura CL CL 2.2

Tiny
HB94766
  • MEMBER
  • 1997 ACURA CL
  • 104,000 MILES
1997 Acura CL 2.2, car cranks but will not start, does not have spark. When trying to start the D4 light will blink. Have changed fuel pump, distribitor, injector relay, computer, ignition relay under dash and car will still not start. Does have injector pulse but will run when spray starting fluid in throttle body. Any other ideas or suggestions?
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Saturday, September 28th, 2013 AT 5:49 PM

8 Replies

Tiny
MADMIKE1735
  • EXPERT
You have injector pulse and it wont run? Wierd. If it runs on carb cleaner through t. Body, this leads me to believe your injectors have failed. Ohm test them. Over time, they will break down. I cannot find any specs of what they should be. But, you may find they are all they same, or one may be completely different from the others. Start here. Also, I know you replaced fuel pump, so im assuming it works. Have you verified fuel pressure to the fuel rail? I dont want to jump to conclusions, but even with weak injectors, it should atleast start.
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Saturday, September 28th, 2013 AT 6:09 PM
Tiny
HB94766
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Sorry. That should have said Does Not have injector pulse
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Saturday, September 28th, 2013 AT 6:24 PM
Tiny
MADMIKE1735
  • EXPERT
These have an injector resistor that fails.
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Saturday, September 28th, 2013 AT 6:31 PM
Tiny
HB94766
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I do have good fuel pressure
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Saturday, September 28th, 2013 AT 6:42 PM
Tiny
HB94766
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That has been change. We have 12 volt at injector, but no pulse.
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Saturday, September 28th, 2013 AT 6:49 PM
Tiny
MADMIKE1735
  • EXPERT
Did u change the relay, or the resistor?
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+1
Saturday, September 28th, 2013 AT 6:51 PM
Tiny
HB94766
  • MEMBER
Actually both
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Saturday, September 28th, 2013 AT 7:01 PM
Tiny
MADMIKE1735
  • EXPERT
Ok, here im at at a loss. Its possible your pcm failed. Your injectors recieve pulse from your pcm. Your pcm takes other sensor inputs, and then "outputs" your injector pulse. Short, or long depending on fuel needs. This is extremely difficult to walk you through the diag involved online. I dont want to tell you to bring it to a garage, but in this instance, it may be adviseable. Without this car in front of me, and certain test equipment, its difficult.
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Tuesday, October 1st, 2013 AT 4:32 PM

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