still need timing help on 3vze!!!
#1
Registered User
Thread Starter
Join Date: Mar 2009
Location: Georgia
Posts: 390
Likes: 0
Received 0 Likes
on
0 Posts
still need timing help on 3vze!!!
so, thank you guys for the info on how to adjust the tps sensor, it had an open circuit off idle and needed to be adjusted. however, when i jump the te1 and e1 terminals to set my base timing, the check engine light flashes like it should but the timing does not change nor does the idle. i read that the idle rpm must be 800 +/- 50 rpm. i used an engine tachometer and my idle is currently 575-610 rpm, way too low. help point me in the right direction please. is there a test or adjustment for the idle circuit? what controls the idle? is there and iac valve or is it one of the vacuum elements on the side of the throttle body? thanks again, i really want to get this truck running right. also, the truck still has a miss at idle, and at lower rpms seems to lack power, hopefully this is why
#2
Contributing Member
Join Date: Feb 2007
Location: maple ridge, British Columbia, Canada
Posts: 9,055
Likes: 0
Received 9 Likes
on
5 Posts
I have a similar issue. When I jump the connectors my idle will not drop. Turns out there is a bad wire from the TPS to the ECU. I used a test wire and bypassed the bad wire, and it fixed the problem.
Check the wiring
Also, adjust the idle with the big screw.
Check the wiring
Also, adjust the idle with the big screw.
#3
Registered User
Join Date: Nov 2008
Location: CHICO, CA
Posts: 312
Likes: 0
Received 0 Likes
on
0 Posts
so your tps was adjusted but then you figured out the wire was bad??
for the test, which wire did you bypass and how did you connect it into the ecu??
my idle never dropped either, but I always thought that it didnt always have too.
for the test, which wire did you bypass and how did you connect it into the ecu??
my idle never dropped either, but I always thought that it didnt always have too.
#6
Contributing Member
Join Date: Feb 2007
Location: maple ridge, British Columbia, Canada
Posts: 9,055
Likes: 0
Received 9 Likes
on
5 Posts
After I did this, I started the truck back up, and jumped the TE1 and E1 connector, my idle dropped accordingly.
I removed the test wire and put shrink wrap around the exposed wire.
I will have to remove the upper intake to expose the wiring harness.
I have yet to make it that far yet. I have just delt with the rich mix and wandering idle..... I will have at it once it gets nice outside
Just gonna pull the wire and replace most of it.
Look at the top of the page in this secton. There should be a sticky with FSM's there. Scroll down and look at the 1993 toyota FSM. It will work for you.
Last edited by Jay351; 03-19-2009 at 11:15 PM.
#7
Registered User
Thread Starter
Join Date: Mar 2009
Location: Georgia
Posts: 390
Likes: 0
Received 0 Likes
on
0 Posts
any other advice? the idle does not change nor does the timing position when i jump the terminals. also, low rpm power seems way down, but when the truck hits around 3k rpm, it feels like a turbo kicks in and power is good????
Thread
Thread Starter
Forum
Replies
Last Post