2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

are injectors suppose to pulsate or stay on/?

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Old Jul 3, 2005 | 10:23 PM
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prjct87rx7's Avatar
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are injectors suppose to pulsate or stay on/?

are the primarys suppose to pulsate like go on,off.on,off in a pulsating manor or stay on constintley when cranking? thanks
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Old Jul 3, 2005 | 10:34 PM
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ps if the car doesnt start after a min would the leading plugs be bone dry,if the spark plug wires are removed,cause my injectors are firing*tested* but they dont seem like there getting into the housings?
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Old Jul 3, 2005 | 10:42 PM
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prjct87rx7, I would check your Air Flow Meter as it has a switch to turn on your fuel pump. My guess is that you have no fuel in your fuel rails. There is a test connector near the AFM that you can short out to run your pump to test if this is the problem. If you plugs are dry you are getting no fuel! To prove the point you could drop some fuel into you intercooler so the vapour will cause you engine to fire. It won't run long but it proves the point, you have no fuel.
Regards
Michael Smith
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Old Jul 3, 2005 | 10:44 PM
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Driveline Killer
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From: OC the wicked 714
injectors spray fuel the way spark plugs fire.
Yes they pulsate.
Are you having problems starting it completely???
you need to post more info on what your situation is and sympotoms to help resolve the problem with the help of forum members.
Have you tried deflooding the motor???
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Old Jul 4, 2005 | 12:19 PM
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prjct87rx7's Avatar
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heres the deal...injectors are firing, pulled the primary fuel rail,ties injectors in place and cranked the engine,and they squirt fuel fine, its like the fuel just isnt reaching the housing and collecting in the hole where the injectors plug in??? its the wierdest thing
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Old Jul 4, 2005 | 05:03 PM
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Driveline Killer
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From: OC the wicked 714
okay if the fuel is not getting sucked into the motor than your motor is flooded and the apex seals aren't sealing thats alll!!!!!!!!
pull the plugs out of the motor, pump some oil in there, and try to fire it.
I had that problem come up a couple of times when I first got into rotary engines.......Then someone explained to me what flooding was like on a rotary......
I do believe thats all it is...............
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Old Jul 4, 2005 | 11:27 PM
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From: las vegas.nevada.
i have a fuel cutoff switch though even if its floods it usually would try to start if i turned the switch off ive been working on it for a week its not flooded?
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