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01 chev cavalier 2.2l 181000km a week ago car wouldnt start not getting fuel replaced filters and pump ran for two days wont start again. No codes no engine light.. replaced fuel pump relay, fuel pressure regulator even tried replacing gas cap.. no luck.. car will run for a second when you spray gas in the throttle body/intake... all new plugs and i should mention they are dry fuels not getting to them but why? Any ideas on what to do next? I am stumped please help!

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  • Tammy Francis May 06, 2013

    The VATS system was the problem in this case if anyone is having similar problems I strongly suggest checking out this link and trying it before putting money out. It cost around $400 in parts I did not need. The dealer said fixing the VATS problem would be around $1000 on you tube there are step by step instructions for a bypass total estimated cost 97 cents I will try that.. but car is running now by following instructions at this websitehttp://vats.likeabigdog.com/pk3relearn.h...

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  • Cars & Trucks Master
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Check into your VATS system

Posted on May 06, 2013

Testimonial: "Thank-you, Thank-you, Thank-you, the VATS system was at fault for all of the problems it seems running now."

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Posted on Jan 02, 2017

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psds4
  • 293 Answers

SOURCE: 1997 Chev Cavalier hard starting

it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank

Posted on Sep 23, 2008

  • 140 Answers

SOURCE: 1988 nissan pickup engine rotates but does'nt start.

it sounds like the injectors are not opening up man.. replace the injectores and this should fix your problem..good luck keith....

Posted on Mar 21, 2009

  • 17 Answers

SOURCE: Won't start after installing new fuel pump. After

HAVE YOU TRIED CHECKING THE FUEL PUMP RELAY

Posted on Aug 31, 2009

  • 285 Answers

SOURCE: I own a 2000 chevy blazer with a 4.3 v6 vortec. It

did you check power and ground at the fuel pump connector?there should be power at two wires at the connector,one should have constant power with the key on and thats for your fuel gage,the other power wire should have it only when cranking or for about 3-5 seconds when the key is turned on,check both of those first and that will let you know that everything is fine all the way forward of that connector,also did u replace just the pump or the whole sending unit?if you just replaced the pump the connector that runs fron the sending unit to the actual pump itself inside the tank also goes bad on this setup too,look for brown or burn marks on the inside of the sending unit where this connector hooks uo,hope this helps

Posted on Sep 12, 2009

  • 5520 Answers

SOURCE: 1989 mustang gt 5.0 fuel

Was looking at posts and other sites. I take it that some relays are even under seats. Anyway, Apparently the ECU relay and the ECC relay are linked. When properly operating the ECC brain sends a signal to the ECC relay and the ground wire is tan/green. The brain can be throwing the signal and the relay terminals are not receiving the signals, so the relays cannot switch.

Although you have replaced some relays, you need to check your plugins for these 2 relays.

Posted on Nov 28, 2010

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