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Corvette Forum Archive (38 950 posts)
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Subject:
Re: Bad MAF Symptoms for 89
From: "tater" <tater(at)intheground.com>
Subject: Re: Bad MAF Symptoms for 89
Lines: 47
Date: Wed, 23 Jun 2004 06:35:48 -0400
________________________________________________
"Mike" <mikeellison3|x|(at)|x|yahoo.com> wrote in message
news:sKDBc.3833$DQ4.2787(at)fed1read05...
> In <cb6ov7$cqn$1(at)dns3.cae.ca>,
> "Black Bomb" <wassup350(at)hotmail.com> writes:
>
> >Hi
> >
> >I get code 36, but the car runs absolutely fine. How will I be able to
guess
> >when it`s time to replace the MAF sensor?
> >
> >Thanks
> >
> >Dan
> >89 Coupe Blk on Blk
> >
> >
>
> More likely it`s a MAF Burnoff relay. Less likely is a MAF Power
> relay failure. Dealer replaced mine about 5 years ago with the
> comment that the originals weren`t reliable. Since the car had
> less than 50K miles, GM picked up the cost of the relays
> (emission control related). I paid the $ 50 labor.
>
> Last Detail has these for less than Eckler`s.
>
> Regards, "Mike"
> -- mikeellison3xxxatzzzyahoo.com --
I had the same thing happen to my 89.
The person that had it before me tried replacing the mass air unit but the
check light still was on.
( I think this is one reason I got such a good deal on it )
Then I found out in this group what the problem was.The burn off relay and
power relay are right behind the battery
on the firewall.
Called all the local shops here and nobody even new about them. Finally
called the local Chevy dealer and after
explaining to them were the parts were located on the car they now know what
the mass air burnoff and power relays
are!!
They are less than 15 bucks each at the Chevy dealer so I replaced both of
them,and no problems with it so far (3 years).
Hope this helps.
Mike
From: larrybud2002(at)yahoo.com (Larry Bud)
Subject: Re: Bad MAF Symptoms for 89
Date: 23 Jun 2004 07:35:30 -0700
Lines: 22
NNTP-Posting-Host: 69.244.177.21
________________________________________________
"Black Bomb" <wassup350(at)hotmail.com> wrote in message news:<cb73lt$4ol$1(at)dns3.cae.ca>...
> Thanks Guys,,
>
> I`ll run it until it lets go...
>
> Dan
No, don`t do that. When you get an engine light, the car computer
goes into a default mode, called "limp home mode". It retards the
timing and does some other things so the car just runs. Your mileage
and performance will suffer.
As someone mentioned, it`s probably the relays. I seem to have to
replace mine every other year, so now I buy two of each at a time.
They`re not that much. You can still buy them at the dealership for
about $12 and $18 each (can`t remember which one costs what). Take 15
minutes to replace. Couple bolts hold them on over by the battery.
Note that after you replace the burnoff relay, it might take a couple
of starts before the code goes away. The burnoff relay clicks on when
the car is shut OFF. I`ve apparently had enough crud on the MAF wire
where it took a couple of burnoff cycles to clean it throughly.
From: "Black Bomb" <wassup350(at)hotmail.com>
Subject: Re: Bad MAF Symptoms for 89
Date: Wed, 23 Jun 2004 11:20:11 -0400
Lines: 36
NNTP-Posting-Host: p4400.cae.ca
________________________________________________
Thanks Guys,,,
I`ll replace those parts. Should I disconnect the battery for a few minutes
to delete the codes aswell?
Thanks
Dan
"Larry Bud" <larrybud2002(at)yahoo.com> wrote in message
news:5db363e0.0406230635.37e843c5(at)posting.google.com...
> "Black Bomb" <wassup350(at)hotmail.com> wrote in message
news:<cb73lt$4ol$1(at)dns3.cae.ca>...
> > Thanks Guys,,
> >
> > I`ll run it until it lets go...
> >
> > Dan
>
> No, don`t do that. When you get an engine light, the car computer
> goes into a default mode, called "limp home mode". It retards the
> timing and does some other things so the car just runs. Your mileage
> and performance will suffer.
>
> As someone mentioned, it`s probably the relays. I seem to have to
> replace mine every other year, so now I buy two of each at a time.
> They`re not that much. You can still buy them at the dealership for
> about $12 and $18 each (can`t remember which one costs what). Take 15
> minutes to replace. Couple bolts hold them on over by the battery.
>
> Note that after you replace the burnoff relay, it might take a couple
> of starts before the code goes away. The burnoff relay clicks on when
> the car is shut OFF. I`ve apparently had enough crud on the MAF wire
> where it took a couple of burnoff cycles to clean it throughly.
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