Question about 1990 Acura Integra

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I have a 1990 Acura integra rs. I changed the fuel pump,fuel relay,and fuel filter. It started when I sprayed gas into the injectors, but it won't start on its own. What else can I do?

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  • 62 Answers

Along the firewall there is a pressure test point (looks like a tire valve) push the valve in to see if there is fuel and pressure.

I'm guessing there is NOT if you can spray fuel and start.

If there is you may want to get a pressure gauge and make sure the pressure is high enough.

If NOT, you need to chase back why you don't have pressure.
is there power to the relay ?
Is the relay switching ?
Is there power to the pump ?

Posted on Apr 14, 2015

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Posted on Jan 02, 2017

  • 10 Answers

SOURCE: my 1990 acura integra wants to start but won't

It's hard to know whether or not this is a fuel issue or a spark issue. Here is where I'd start:

Have a mechanic check your fuel pressure to make sure you're getting fuel. An intermittent starting issue could point to a clogged fuel filter. This would be more likely than the pump.

With the age of the car, a faulty main relay could also be the culprit. They are notoriously bad on Acuras of that age. The solder joints break and they will work one minute and not allow the car to start the next. (starter will turn the engine over but not "catch")

If this problem happens more often when the weather is hot or cold, it points toward the main relay. Good luck.


Posted on Nov 02, 2009

  • 2187 Answers

SOURCE: acura integra 1990 turns over fine but doesnt start

for you to check if it is the fuel pump, see if there is fuel running out of the hose if you remove the fuel filter. Another is to directly connect the pump to the battery. If the pump works that way, then it could be a efi relay issue which is found underneath the dash or a wiring issue.

Posted on Jul 10, 2009

  • 1 Answer

SOURCE: 91 Camaro RS V6 starts, but won't stay running

I'm willing to bet you have bad fuel injectors. Back in 91 they had a problem with on injector shorting out causing the rest to short out. I have a 91 that had the same problem, and my injectors were junk.

Posted on Dec 17, 2009

YellowNo5
  • 268 Answers

SOURCE: acura integra rs no spark no fuel pressure

Could be the main relay. It's behind the dash up above your gas pedal. Look for a gray and brownish box with one large plug in it. Should be easy to find since you don't have cruise control. It will be secured with one 10mm. You can bring it into reach with it still plugged in. Try starting it while tapping on the little plastic box. If it starts, pry off the cover with a flat head screwdriver and re-solder the broken connections. The break in the solder will be on the side with the sharp little things. It will be smaller than a hair. To find it you will need to wiggle it. Have plenty of light. Just hold the soldering tool on the broken one until the solder puddles around it and you're fixed.

Posted on Apr 29, 2010

  • 5 Answers

SOURCE: 91 acura legend will not start

Take off the hose to the throttle body and look for any obstructions. This has been know to cause performance issues similar to those described

Posted on Sep 19, 2010

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It's hard to know whether or not this is a fuel issue or a spark issue. Here is where I'd start:

Have a mechanic check your fuel pressure to make sure you're getting fuel. An intermittent starting issue could point to a clogged fuel filter. This would be more likely than the pump.

With the age of the car, a faulty main relay could also be the culprit. They are notoriously bad on Acuras of that age. The solder joints break and they will work one minute and not allow the car to start the next. (starter will turn the engine over but not "catch")

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