Got the on/off throttle hesitation much improved...
05-16-02, 10:37 PM
#1
I came, I saw, I boosted.
Thread Starter
Join Date: Apr 2001
Location: Windsor, Ontario, Canada
Posts: 1,921
Likes: 0
Received 0 Likes
on
0 Posts
Got the on/off throttle hesitation much improved...
I posted a thread a few days ago about my horrible on/off light throtle jerkiness....
well, I got it much reduced, but it's still there a tiny bit- but it's nowhere near as annoying as it was before.... its just a little bump, instead of the whole car jerking around....
I grounded the two ground wires on the TPS connector right to the firewall.
and I readjusted it using the 1v method after that.... it was out a bit - at about 1.18 V....
It's much smoother now, but not perfect... but definatly liveable!!
I'm still going to check the throttle plate clearance though... might finish it off...
Thanks to those who helped!
well, I got it much reduced, but it's still there a tiny bit- but it's nowhere near as annoying as it was before.... its just a little bump, instead of the whole car jerking around....
I grounded the two ground wires on the TPS connector right to the firewall.
and I readjusted it using the 1v method after that.... it was out a bit - at about 1.18 V....
It's much smoother now, but not perfect... but definatly liveable!!
I'm still going to check the throttle plate clearance though... might finish it off...
Thanks to those who helped!
05-17-02, 09:00 AM
#3
I came, I saw, I boosted.
Thread Starter
Join Date: Apr 2001
Location: Windsor, Ontario, Canada
Posts: 1,921
Likes: 0
Received 0 Likes
on
0 Posts
It was pretty much adjusted fine before I re-grounded it, - but when ran another ground for the the TPS connector- the voltage jumped up by almost .1V!
Previously, having to set it up compensating for that voltage drop must have thrown out the synchronization between the other components...
What I have noticed is that almost EVERYTHING that has the brown wire w/black stripe on it for the ground (most sensors) needs a good chassis ground, or maybe a gang ground, right to the -ive on the battery!
I'll check the CAS next to see if it has one, and everything else too!!
Grounding the pressure sensor, MAF, and TPS so far has each fixed a problem!
I'll do everything else now that has that brown/black wire....
Previously, having to set it up compensating for that voltage drop must have thrown out the synchronization between the other components...
What I have noticed is that almost EVERYTHING that has the brown wire w/black stripe on it for the ground (most sensors) needs a good chassis ground, or maybe a gang ground, right to the -ive on the battery!
I'll check the CAS next to see if it has one, and everything else too!!
Grounding the pressure sensor, MAF, and TPS so far has each fixed a problem!
I'll do everything else now that has that brown/black wire....
05-17-02, 09:43 AM
#5
~~~~~~~~~~~~~~~~~~~~~~~
Join Date: May 2001
Location: Pittsburgh, PA
Posts: 1,594
Likes: 0
Received 0 Likes
on
0 Posts
What wires on the TPS and MAF did you ground? Are there two brown with black stripe wires on the TPS? Is the wire on the MAF brown with black stripe? I don't seem to have this problem but I like to add grounds just to be safe.
05-17-02, 09:47 AM
#6
Rotary Freak
iTrader: (3)
Join Date: Feb 2002
Location: MN
Posts: 1,697
Likes: 0
Received 0 Likes
on
0 Posts
May I ask for some clarification? Whan ppl say "re ground" it means run a NEW ground wire to OLD chasis connection, OR run a NEW ground wire to NEW chassis connection area (new bare metal spot) OR keep OLD ground AND run NEW ground to NEW location on the chasis? plus any other combo I missed.
Which is it?
Which is it?
05-17-02, 11:02 AM
#7
Seduced by the DARK SIDE
Join Date: Apr 2001
Location: Orange Park FL (near Jax)
Posts: 7,323
Likes: 0
Received 2 Likes
on
2 Posts
If memory serves- There are (2) from engine to firewall and (1) exhaust (near muffler) to chassis.
You start by beefing up the engine to firewall strap. Then you disconnect the battery, pull each sensor connector, wire brush the pins, and hit them with a blast of spray contact cleaner (Home Depot has it).
You need a good sensitive VOM to then ohm out the various ground pins to battery neg. If a ground is suspect, splice in a temporary supplemental ground to see if that helps. If so, then you make it permanent and dress it up.
Along with resoldering PCB’s, this makes almost all electric related problems go away.
(Oh, yeah - reconnect the battery.)
You start by beefing up the engine to firewall strap. Then you disconnect the battery, pull each sensor connector, wire brush the pins, and hit them with a blast of spray contact cleaner (Home Depot has it).
You need a good sensitive VOM to then ohm out the various ground pins to battery neg. If a ground is suspect, splice in a temporary supplemental ground to see if that helps. If so, then you make it permanent and dress it up.
Along with resoldering PCB’s, this makes almost all electric related problems go away.
(Oh, yeah - reconnect the battery.)
Trending Topics
05-17-02, 11:21 AM
#8
Senior Member
bambam i have a question for u.. i seen on the avatar.. u mounted the s-afc right on the ashtray?? is that custom?? or is it just sitting there??? help me outtt! i dont wanna really mount it on top of the dash in front of the clock and warning lights(too civicish and ricy)...
05-18-02, 12:10 AM
#9
Man, I'm so glad i have a car that does'nt have the ground problems that you guys have. All i have is one extra ground strap from engine to fire wall. Sounds like it a pain in the bum to have to reground everything. Hope you get everything figured out. CJ
05-18-02, 10:55 AM
#10
I came, I saw, I boosted.
Thread Starter
Join Date: Apr 2001
Location: Windsor, Ontario, Canada
Posts: 1,921
Likes: 0
Received 0 Likes
on
0 Posts
Ya.. it seemed to run just fine when it was BONE stock... a tiny bit jerky on/off throttle... but not too bad.
It wasn't untill I yanked out the engine, and modded everything else that the little drivability probs started to crop up- especially with the S-AFC..... Maybe with the more closely tuned engine (easier flowing intake/exhaust) there isn't as much room for error in fuel delivery?
Who knows.... but it's OK now.
Oh- and My S-AFC is mounted in the ashtray spot.... the pic in the avatar sucks, because I hadn't cut out the ashtray cover to go around it yet.
The cover is now on as the surround, and it couldn't look cleaner.
It wasn't untill I yanked out the engine, and modded everything else that the little drivability probs started to crop up- especially with the S-AFC..... Maybe with the more closely tuned engine (easier flowing intake/exhaust) there isn't as much room for error in fuel delivery?
Who knows.... but it's OK now.
Oh- and My S-AFC is mounted in the ashtray spot.... the pic in the avatar sucks, because I hadn't cut out the ashtray cover to go around it yet.
The cover is now on as the surround, and it couldn't look cleaner.
05-18-02, 01:30 PM
#12
Super Newbie
Originally posted by pp13bnos
Man, I'm so glad i have a car that does'nt have the ground problems that you guys have. All i have is one extra ground strap from engine to fire wall. Sounds like it a pain in the bum to have to reground everything. Hope you get everything figured out. CJ
Man, I'm so glad i have a car that does'nt have the ground problems that you guys have. All i have is one extra ground strap from engine to fire wall. Sounds like it a pain in the bum to have to reground everything. Hope you get everything figured out. CJ
Thread
Thread Starter
Forum
Replies
Last Post