Question about 1992 Ford Taurus

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Failed emissions test

I fail my emissions test because car couldn't hold speed what could be the problem

Posted by Anonymous on

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  • Ford Master
  • 14,161 Answers

You might check out the links below good luck:


Posted on Dec 29, 2015

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 9 Answers

SOURCE: code p0460

Code p0460 is a fuel level sending unit problem. It will not make you fail an emisions test. The fuel sender is the problem. Your guage is irratic at times. you need a fuel sender replaced in tank.

Posted on Sep 04, 2008

daves944
  • 1050 Answers

SOURCE: vehicle failed emissions testing

You need to replace the intake upper plenum gaskets. There is two pieces, a top cover with one big silicone o-ring gasket and a lower half with six smaller silicone o-rings for the individual intake ports. You can buy these as a set, just for this job. Start this job by removing the wiper blades, then release all the screws, (including the ones that support the wiper motor), that hold that big black plastic valence at the back of the engine compartment. Pull that out of the way, you will have to pull the windshield washer hose through it, just disconnect it on the engine side, now you have access to the plenum. It's a pretty easy job now to remove and replace both halves, just a bunch of 8mm screws hold it all together. Take notes or digital pics along the way so you can pop it all back together. My only caution would be; when you have it apart, do not drop anything in the intake port! I always stuff kleenex in these while I'm working in case something slips out of my hands. Also, don't over tighten, it's all plastic. If you don't want to do it yourself, a shop should charge about an hour and a half, plus the codes must be reset and the van driven until all the monitors are ready.

Posted on Mar 26, 2009

morse008
  • 1111 Answers

SOURCE: FAILED EMISSIONS

possible but could be head gasket or valves , or worn rings and is by passing the pistons going straight out the end ...or maby settings are wrong ? try carb cleaner and inspect visually air-filter etc.

Posted on Aug 26, 2009

  • 12104 Answers

SOURCE: Failed emissions What fuse for OBD port on 2006 Ford Fusion?

check the out put from the computer to the obd ll port if good need to check the wiring harness ,connections and pin contacts from computer to obd ll port connections possible short,frayed or broken wire

Posted on Feb 14, 2010

duane_wong
  • 6826 Answers

SOURCE: Car failed emission test intake

change the intake iar temperature sensor to pass the test.

Posted on Dec 18, 2010

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