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4.9 TPS learn question
(by JetroGT, started: 05-26-2018, last post: 2018-05-27 02:38:58 CEST)
I need to know how to disable the alternator to perform the TPS learn. I have every thing else set. Idle screw set to 500 rpm, TPS volts set to .5v but without the alt grounded the TPS angle won't reset to zero. Rock Crawl says to ground the brown wire. I think I need pictures. lol
Score: 633, Size: 30 bytes
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More 4.9 questions
(by racingfortheson, started: 10-22-2014, last post: 2014-10-28 02:53:31 CET)
I have searched and ether can find what I'm looking for or to dumb to see it. I am doing a 4.9 swap and had planned on doing it with a carb because I could get a motor cheap. Well things changed and I got a complete running car that was crashed for cheap. So now I have the computer and now want to...
Score: 633, Size: 34 bytes
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Anyone using FieroAddiction 4.9 88 front mounting bracket?
(by Raydar, started: 07-21-2018, last post: 2018-07-23 04:32:58 CEST)
Is anyone using this bracket on the 4.9, swapped into an 88?Does anyone know what bottom mount is needed, to work with this bracket?Obviously, I can take everything apart and measure / eyeball. But it would be nice to know before I get hip-deep into my project.Already did a search. Found nothing...
Score: 633, Size: 65 bytes
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4.9 Arcing Starter
(by Warlordsix, started: 06-10-2018, last post: 2018-06-23 17:57:38 CEST)
Guys,Have an intermittent problem with the starter on my '87 Fiero 4.9. Every once in awhile when I turn the key to start up the car, I hear an arcing sound from under the rear of the car, and the starter won't spin. Turn the key off and try again, and the starter spins perfectly and the car...
Score: 633, Size: 29 bytes
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Difference between 91 and 93 4.9 ECM
(by falcon_ca, started: 08-26-2013, last post: 2013-09-05 03:34:09 CEST)
When I bought my 4.9 the seller told me that it was a 91.When I was reading about part numbers and ECM/PCM modules numbers I discovered that my engine is a 93.When Stickpony and Fieroddiction programmed the ePROMs I have, I specified that it was for a 91.Is there any significant difference between...
Score: 633, Size: 46 bytes
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Well... so much for the RAM clutch with the 4.9.
(by Raydar, started: 06-05-2015, last post: 2015-06-08 02:13:00 CEST)
It worked really well, right up until it didn't.Now I can be in 4th or 5th and stomp the gas, and make it slip.The clearances were a a little close when I assembled it, so I was hoping that it was just a matter of the pressure plate fingers moving outward as the disk wore down, but that proved to...
Score: 633, Size: 55 bytes
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Reinstalling 4.9 in 88 formula
(by 88_4mula, started: 10-19-2014, last post: 2014-10-20 04:51:48 CEST)
I've finally got around to reinstalling 4.9 with the caddy auto transmission.The only snag is the metal vacuum line coming off the back of transmission.Where does this connect to car?
Score: 633, Size: 39 bytes
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What's the best sounding muffler/cat combo for a 4.9
(by Neils88, started: 03-07-2014, last post: 2014-03-09 02:18:42 CET)
I am getting to the point in my 4.9L build where I have to start considering which muffler and catalytic converter combination will give a great sound, without breaking the bank or robbing too much power. I do require a catalytic converter due to emission requirements. As such I have made the...
Score: 633, Size: 60 bytes
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Cracked block. 4.9 Looking for reasons why.
(by Fieroseverywhere, started: 11-06-2014, last post: 2014-11-14 03:10:04 CET)
Any ideas?Before.Before (cropped)After.If you look close you will see 3 cracks. 2 go to the head bolt hole and 1 into the water jacket. The car had idled in the driveway for ~30 minutes but was shut down when it snapped. The head is straight and true, nothing wrong with the gasket or the dowel...
Score: 633, Size: 62 bytes
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4.9 not running well after distributor change
(by Luperman, started: 12-16-2018, last post: 2018-12-24 21:31:43 CET)
Hello all, My 4.9 in my 86 SE turned out to have no spark when I parked it at work, I had it towed back to the house for troubleshooting, I found it not firing on any cylinders. so instead of finding which component was not working in the distributor I choose to replace the whole thing from...
Score: 633, Size: 54 bytes
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