OMG! Finally Fixed
08-21-11, 10:46 PM
#1
No Sleep
Thread Starter
OMG! Finally Fixed
bought a 86 S4 NA back in Feb. Week later flooded the engine like a *****. 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 ****. 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.
The following users liked this post:
EvanR (02-08-18)
08-22-11, 04:16 PM
#5
Full Member
iTrader: (1)
Join Date: Sep 2008
Location: Georgia
Posts: 141
Likes: 0
Received 0 Likes
on
0 Posts
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!
Happy for ya!
08-22-11, 07:27 PM
#6
talking head
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
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
08-22-11, 08:01 PM
#7
No Sleep
Thread Starter
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.
Thread
Thread Starter
Forum
Replies
Last Post
toplessFC3Sman
2nd Generation Specific (1986-1992)
6
03-20-18 01:54 PM
HalifaxFD
Canadian Forum
126
05-09-16 07:06 PM
t-von
3rd Generation Specific (1993-2002)
9
09-10-15 01:56 PM
