'91 Firebird won't run
10-22-2010, 07:05 PM
#51
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Car: 2003 Hyundai Tiburon GT
Engine: 2.7L V6
Transmission: 6-speed
Axle/Gears: 4.41
Re: '91 Firebird won't run
Oh, and, if the engine isn't getting any hotter than 220*, the rad fan won't kick on, as it's supposed to turn on at 235*. Although, it should kick on when you go to pull the codes from the ECM.
10-24-2010, 05:55 PM
#52
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Re: '91 Firebird won't run
*sigh*
So, I go out today to throw the timing light on it and make sure everything is where it's supposed to be when, lo and behold, the damn thing won't run. Ran real rough for a bit then died and I can't get it going again. I checked vacuum lines and found that a couple were questionable, so I cut the bad ends off and put 'em back together. I don't get it. I'm getting to the point of either taking it to the shop or setting it on fire and buying a flippin' Prius and some Birkenstocks.
Now, if you'll excuse me, I'm going to go see what can be done to remedy codes 33 and 45...
So, I go out today to throw the timing light on it and make sure everything is where it's supposed to be when, lo and behold, the damn thing won't run. Ran real rough for a bit then died and I can't get it going again. I checked vacuum lines and found that a couple were questionable, so I cut the bad ends off and put 'em back together. I don't get it. I'm getting to the point of either taking it to the shop or setting it on fire and buying a flippin' Prius and some Birkenstocks.
Now, if you'll excuse me, I'm going to go see what can be done to remedy codes 33 and 45...
10-24-2010, 07:43 PM
#53
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Car: 2003 Hyundai Tiburon GT
Engine: 2.7L V6
Transmission: 6-speed
Axle/Gears: 4.41
Re: '91 Firebird won't run
In my experience, the code 33 will generally cause the code 45, as it commands the ECM to throw more fuel in the intake charge. Check for a vacuum leak to or a short in the MAP sensor wiring (low vacuum sensed at MAP for 5 seconds with closed throttle).
10-25-2010, 03:51 PM
#54
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Re: '91 Firebird won't run
Thanks, Maverick. I'll see what I can find. The MAP sensor is new, but I've seen new stuff break before. I checked the vacuum to the MAP from the intake and it's good.
04-20-2011, 10:52 PM
#55
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Re: '91 Firebird won't run
Yeah, I know, it's been awhile. Car still doesn't run. Checked vacuum lines and wiring and everything checks out. Still won't run. Tried again this last weekend and it fired and ran roughly for a few seconds and died. I'm going to go see about picking up an ECM from Pull n Save and see what happens. If that doesn't do it, I guess it goes to the shop.
04-21-2011, 08:55 AM
#56
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Car: 1991 Firebird
Engine: 3.1 V6
Transmission: Automatic
Re: '91 Firebird won't run
You have to take the injector off of each injector to test them one by one. The info above is slightly incorrect--each injector should have around 12 ohms resistance, with no more than 1.2 ohms difference between the highest and lowest readings.
However, this sounds like a MAP issue to me. You would have to remove it and take it to AutoZone or somewhere to have it tested.
However, this sounds like a MAP issue to me. You would have to remove it and take it to AutoZone or somewhere to have it tested.
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