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OMG! Finally Fixed
bought a 86 S4 NA back in Feb. Week later flooded the engine like a mutha. replaced the ecm, and whole ignition system. 3 months later engine starts(hallelujah), but wont stay on. Replaced uim and lim gaskets and abrakadabra the bitch stayed stayed on. A week later wont hold idle. Omp and bac delete but still nothing. Tighten throttle cable very tight = buttery plates always open = car stays on but bouncy idle and overheated. Alt double pulley and overheating fixed. Adjust tps, time ignition, clean/change spark plugs, and oil changes like a gazillion times but didnt do shit. Continued driving with fluctuating idle until today! 2 days ago changed plugs with all leading(no trailing) got good results. Yesterday regrounded boost sensor and adjust the tps. Today no erratic idle no 3800 hesitation; very high idle(1900) so pulled the accelerator pedal the opposite way and idle drops to 1100 when released idle rises back up. Tomorrow gonna loosen throttle cable which means 100% fixed.
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too bad theres no like button like facebook..
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nice!
my baby should be 100% this weekend and she's been down for forever it seems. Right there with ya man! |
tons of work but sounds totally worth it! I hope mine runs right once I get this engine swap done...totally freakin out about screwing it up or if all the parts I have work!
Happy for ya! |
how about you set the throttle stop closer to 1000 and less revs with the set coupler connected ,, THEN calibrate the TPS
fine tune the idle speed at the BACv adjust screw ( turbo cars only ) ----------------------------- you MUST calibrate the TPS if you move the throttle stop position you MUST set the idle speed with the set coupler bridged ( s4 2 wire ) or grounded ( s5 one wire ) else it will react the BACv ( if still fitted ) around your moves |
today it idles at 1300 steady! no more idle problems. Alotta alotta work but yes totally worth it. I would like the people who helped and replied to all my questions and also the forum itself.
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