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#1
10-15-2009, 08:55 PM
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1989 2.8 not running right
I have a 1989 Grand Prix with a 2.8L.It recently quit on me while accelerating out of a parking lot into traffic.Now it won't stay running.Has new fuel pump,TPS,plugs and wires,is getting spark,checked the IAC,MAP,ECM,EGR,CPS all is good.It gives a MAP code but I tried a different MAP to no avail.It will turn over and start but runs like it is on 2 cylinders and as soon as you give it gas it quits.I am pointing toward timing issue
Last edited by phantom1131; 10-16-2009 at 03:19 AM. 
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#2
10-16-2009, 03:00 AM
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Re: 1989 2.8 not running right
Welcome to AF.
Instead of posting a link to another forum where you have an issue posted make a new post here (copy and paste) or someone might construe your post as violating the rules.
__________________
'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#3
10-16-2009, 03:23 AM
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Re: 1989 2.8 not running right
ok..editted first post...any thoughts??
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#4
10-16-2009, 09:23 AM
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Re: 1989 2.8 not running right
Double check your fuel pressure. Just because a part is new, doesn't mean it couldn't/didn't fail.
__________________
 Still waiting for the "good old days" I'll get to bore my future grandchildren with!
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#5
10-16-2009, 11:23 AM
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Re: 1989 2.8 not running right
Is it getting spark on all cylinders? You could yank the ICM off there and bring it in for testing.
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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#6
10-16-2009, 03:16 PM
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Re: 1989 2.8 not running right
Quote:
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#7
10-16-2009, 03:35 PM
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Re: 1989 2.8 not running right
Quote:
I hear ya....I do not have a pressure gauge to do that..the first thing I did with this problem is change the fuel pump that only had 10,000 miles and I thought it had failed..figured what are the odds 2 pumps are bad. I know I should still check that though
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#8
11-16-2009, 05:54 PM
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Re: 1989 2.8 not running right
it was a bad fuel injector
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