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Old 01-15-2011, 08:55 PM   #757
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gonna have to trailer it. won't drive over 1200rpm without feeling like it's detonating :(
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Old 01-15-2011, 08:57 PM   #758
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gonna have to trailer it. won't drive over 1200rpm without feeling like it's detonating :(
WOW! Can his tune be off this bad??? It just seems like it might be something else in addition to needing a tune.
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Old 01-15-2011, 09:17 PM   #759
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I hope you get it worked out, Like to see a good end to the install for PQ.
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Old 01-15-2011, 09:33 PM   #760
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gonna have to trailer it. won't drive over 1200rpm without feeling like it's detonating :(
That almost sounds like the MAF isn't reading the airflow. I've worked on a few cars that knocked like crazy off idle, and they turned out to be bad MAFs. On some cars you can turn the key off, unplug the MAF, then restart the engine. And if it idles perfectly with the MAF unplugged, something is wrong with the MAF or wiring. The ECM will use a default value if the MAF is unplugged. I've never tried that on a Camaro, but it has worked on every other car I've suspected a bad MAF.

The arrow on the MAF is pointing toward the engine? It can go in backwards.
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Old 01-15-2011, 09:43 PM   #761
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Check this as well with the maf. You might be surprised. It will only take a second to check.

http://vararam.com/camaro.html
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Old 01-15-2011, 09:43 PM   #762
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Old 01-15-2011, 10:02 PM   #763
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@PQ; Bro' take the vehicle in to a specialist. You wouldn't want to keep tinkering and blow the engine. A few hundred bucks to get it sorted out and tuned right is better than $10k in engine repairs, unless of course your next step is to upgrade the internals anyway. LOL
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Old 01-15-2011, 10:06 PM   #764
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MAF problems can be tough to diagnose too, often don't set a code. The ECM just gets a wrong reading, and calls for the wrong fuel (way too lean if it's not reading the air flow) and the engine will just stall or detonate unexplainably when you crack the throttle and the engine gets more air not seen by the MAF.

I'll wager 37 cents the MAF is either in backwards or a wiring problem to the MAF.

I would try unplugging it with the key off, then restart, and see if it will idle stable with the MAF unplugged.
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Old 01-15-2011, 10:10 PM   #765
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PQ do you have a way to test all the fuse's for the fuel pump or the ECM, You may have blown one and don't know it.
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Old 01-15-2011, 11:39 PM   #766
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Quote:
Originally Posted by calbert1999 View Post
@PQ; Bro' take the vehicle in to a specialist. You wouldn't want to keep tinkering and blow the engine. A few hundred bucks to get it sorted out and tuned right is better than $10k in engine repairs, unless of course your next step is to upgrade the internals anyway. LOL
I agree. Magnuson told me to ziptie the actuator open and try to ease it to the tuner. And if I notice any detonation to not drive it.

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Originally Posted by Russell James View Post
MAF problems can be tough to diagnose too, often don't set a code. The ECM just gets a wrong reading, and calls for the wrong fuel (way too lean if it's not reading the air flow) and the engine will just stall or detonate unexplainably when you crack the throttle and the engine gets more air not seen by the MAF.

I'll wager 37 cents the MAF is either in backwards or a wiring problem to the MAF.

I would try unplugging it with the key off, then restart, and see if it will idle stable with the MAF unplugged.
The other night when I was resplicing the wires I had to take the intake loose so i had to unplug the MAF sensor. I forgot to plug it back in and found out because it started but immediately died. The sensor is in the correct flow direction. The arrow is correct. If it wasn't I would have known 6 months ago.
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Old 01-15-2011, 11:42 PM   #767
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I agree. Magnuson told me to ziptie the actuator open and try to ease it to the tuner. And if I notice any detonation to not drive it.

The other night when I was resplicing the wires I had to take the intake loose so i had to unplug the MAF sensor. I forgot to plug it back in and found out because it started but immediately died. The sensor is in the correct flow direction. The arrow is correct. If it wasn't I would have known 6 months ago.
werd

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Old 01-16-2011, 12:03 AM   #768
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Check this as well with the maf. You might be surprised. It will only take a second to check.

http://vararam.com/camaro.html
I'll check. But it's been working in this intake for 6 months.

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PQ do you have a way to test all the fuse's for the fuel pump or the ECM, You may have blown one and don't know it.
Ya. I can pull them and look.
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Old 01-16-2011, 12:05 AM   #769
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FUUUUUUUUUUUUUUUUUUUUUUUUUUSE PUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUULLLLL



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Old 01-16-2011, 12:18 AM   #770
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FUUUUUUUUUUUUUUUUUUUUUUUUUUSE PUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUULLLLL



Free for all.

I got fuses I haven't even pulled yet.
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