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Pontiac Fiero Guides and Walkthroughs

Updated: Jul 7, 2023

Links to Fiero Manuals, Wiring Diagrams, Tuning Resources, Engine Swap Guides, Mods, and Fixes!


The engine bay of a 1987 Pontiac Fiero GT with fresh paint and a new ignition system.

This is a list of Pontiac Fiero Guides and Walkthroughs I have compiled for my personal Fiero projects. Currently I am resto-modding a 1987 Fiero GT. Final goal for the project is a 3.4L block, ported and polished 2.8L Fiero intake, larger throttle body, 7730 ECM swap, 4t65E four speed automatic.


Fiero GT Maintenance and Mods Playlist


Pontiac Fiero Service Manuals, Guides and Walkthroughs

http://gafiero.org/docs.shtml GM 60-degree V6 Power Manual, Pontiac 2.5 Engine Build Information http://gafieroclub.org/FieroTips/index.htm Massive write-up that goes over tons of mods and swaps. Easy to search http://fierocave.shorturl.com The Ogre's Fiero Cave - Tons of specs and how-to's, better than factory alignment sheet http://www.gmtuners.com Fiero Engine Conversion Info, DIY ECM / PCM Reprogramming, Download Wiring Diagrams and Pinouts, GM LS4 V8 / 4T65E info http://www.gmtuners.com/files/index.htm Pinouts, Detailed write-ups on many different wiring harness conversions, OBD II conversion write-ups https://www.oocities.org/fierowarehouse/main.html Old Fiero Warehouse page http://www.fierofocus.com/Tech%20Tips/Pdf%27s/Club%20Meeting%20PDFs/NIFE%20%20Ign%20Sys2.pdf Fiero Ignition Systems diagrams and explanation http://www.fiero.net/txt/subinstallation.txt Subwoofer installation walk-through http://www.gearhead-efi.com/Fuel-Injection/showthread.php?371-1227170-ECM-Information-24 All the files you need to start tuning the stock Fiero GT's 7170 ECM can be found here http://www.gearhead-efi.com/Fuel-Injection/showthread.php?4170-1227727-1227730-1227749-v-S_AUJP All the files you need to start tuning the 7730 ECM upgrade can be found here http://fierozone.tripod.com/realbrakes/index.html Beretta front brake upgrade for 1984 - 1987 https://www.nhtsa.gov/vehicle/1987/PONTIAC/FIERO#recalls List recalls and what was changed http://www.ws6transam.org/aldl_47.html 160 Baud ALDL operating characteristics, 160 Baud Mode Words & Status Flag Descriptions for 7170 ECU http://www.gmtuners.com/files/index.htm Download Wiring Diagrams and Pinouts for lots of ECM swaps, engine swaps, and transmission swaps http://www.megamanual.com/ms2/GM_7pinHEI.htm GM ignition module internals and explanation http://ronspontiacpage.com/desktopdyno-camfiles/dd2000stockcams.htm Pretty much every factory Pontiac cam and head specs, lots of aftermarket cam and head specs, need DesktopDyno 2000 or DesktopDyno 2003 to use https://speeduino.com/home A cheap arduino based engine management solution, can be tuned with MegaSquirt software https://www.dohcfiero.com DOHC 3.4L swap information


Final Thoughts


If there is a guide that has helped you post it here or on our Facebook page to have it included.




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