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possible issues with passing inspection???

 
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Old 01-24-2011, 04:05 PM
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possible issues with passing inspection???

If and when I convert my 98 lude to obd1 so that I can tune properly with my n/a build, will I still be able to pass inspection with the p28 ecu or any other ecu ??? I dont understand how that would work.

I am confused about when they hook up to the inspection computer wouldn't it register the ecu. and the body of the car and the ecu wouldn't match wouldnt that throw a flag up?

I dont want to do all this work to the motor if I will not be able to pass inspection...

thanks for any input
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Old 01-24-2011, 04:58 PM
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Re: possible issues with passing inspection???

(BUMP) This is a good question, I am going to be moving from Idaho to Washington soon so I will have to pass emission tests and I know nothing about them.
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Old 01-24-2011, 07:26 PM
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Re: possible issues with passing inspection???

If your talking about emissions. I believe it would fail. But my friend had a Prelude with the conversion to OBD1 here in Ottawa, Ontario (we do emissions every 2 years) and he passed it. Instead of them putting his car on the rollers, they did an idle test at certain rpm's and he passed. Reason why they didn't have to put his car on was because his car was too low and they didn't want to risk scraping his kit.
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Old 01-24-2011, 09:57 PM
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Re: possible issues with passing inspection???

Yeah I mean I just dont understand how the emmisions or inspection laws are. If you have an "obd2 car" with an altered obd1 ecu out of a civic p28 or integra p72. How would you be able to pass emmisions???

Im assuming that they have to type in your VIN and probably hook something up to the car.... IDk

Im not sure though
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Old 01-24-2011, 10:20 PM
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Re: possible issues with passing inspection???

From what research Ive done online it seems that as long as you have a good tune on the obd1 ecu that everything should be straight. Also it depends on what state your are in and what actual emissions test are required.

Im having a guy from a local quick lube find out what kind of emissions test are required in NC at their shop for me tomorrow. So hopefully I will have some details...
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Old 01-25-2011, 03:19 PM
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Re: possible issues with passing inspection???

I used to be a certified vehicle inspector for the state of Texas so I can only speak to the laws of that state. When doing an emissions inspection on an OBD2 (in texas) the inspector hooks up a state regulated computer through the diagnostics port. If this test is unable to finish (due to the fact that you are running an obd1 ecu) the car will be put on the dyno and have a tailpipe sniffer test. If your tune on the obd1 ecu was done well enough to keep the tailpipe sniffer happy then you might be able to pass. These are alot of "ifs", however, because it is likely the inspector will fail you when the obd2 diagnostics port does not work as usual. My advice (for what it is worth) if you are keeping the car as a daily driver and want to keep it inspectable then stay away from the ecu swap... or make friends with a vehicle inspector so that when he inspects the vehicle he will over look some of the modifications done to your vehicle. Like dkinger said with a good tune on the obd1 the car could pass an emissions inspection on paper but not to the eye of the inspector.
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Old 01-25-2011, 03:47 PM
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Re: possible issues with passing inspection???

I spoke with my contact at the inspection station in my home town. He actually called the dmv and they advised him that the engine and the ecu have to match....

I guess what I am going to HAVE to do is actually go up to the inspection station and see what and how they hook everything up and how everything works to be able to "manipulate the system"

Ill keep everybody posted on what I find out.
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Old 01-25-2011, 04:29 PM
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Re: possible issues with passing inspection???

It seems that the inspection computer hooks up to the diagnostic outlet in the car and has no direct contact with the ecu +++ SO AS LONG AS THE INSPECTOR DOESNT KNOW YOU HAVE AN ALTERED INTERNALS AND ECU ETC and AS LONG AS EVERYTHING IS TUNED TO PERFECTION than you could pass?????

Soooo Im guessing that as long as everything is "OK" it should not throw any codes.....

But..... with having 2 oxygen sensors using a obd1 ecu would probably not allow the information to process properly from the diagnostic outlet. Being that the obd1 ecu only has 1 oxygen sensor originally.

So I guess the best way to "possibly pass inspection/emmisions" would be to use a obd2 ecu that can be tuned. (wich I think would be a p72 integra gsr) correct me if Im wrong someone...

Last edited by dkiger; 01-25-2011 at 04:31 PM.
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Old 01-25-2011, 04:36 PM
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Re: possible issues with passing inspection???

Quote:
Originally Posted by s13carr View Post
I used to be a certified vehicle inspector for the state of Texas so I can only speak to the laws of that state. When doing an emissions inspection on an OBD2 (in texas) the inspector hooks up a state regulated computer through the diagnostics port. If this test is unable to finish (due to the fact that you are running an obd1 ecu) the car will be put on the dyno and have a tailpipe sniffer test. If your tune on the obd1 ecu was done well enough to keep the tailpipe sniffer happy then you might be able to pass. These are alot of "ifs", however, because it is likely the inspector will fail you when the obd2 diagnostics port does not work as usual. My advice (for what it is worth) if you are keeping the car as a daily driver and want to keep it inspectable then stay away from the ecu swap... or make friends with a vehicle inspector so that when he inspects the vehicle he will over look some of the modifications done to your vehicle. Like dkinger said with a good tune on the obd1 the car could pass an emissions inspection on paper but not to the eye of the inspector.
lol... i just read this for the 2nd time and everything you said is what I found out.

thanks man
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Old 01-25-2011, 08:46 PM
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Re: possible issues with passing inspection???

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Last edited by dkiger; 01-25-2011 at 08:48 PM.
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