318ti.org forum

Go Back   318ti.org forum > Technical, Maintenance and Modifications > Engine

Notices

Engine Tuneups, chips, wires, spark plugs.

.
» Recent Threads
The 318ti OBD-II engine...
10-19-2006 06:48 PM
Last post by Filiski120
04-24-2024 06:40 PM
210 Replies, 988,723 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 01-14-2013, 06:30 PM   #1
trunxgp1224
Junior Member
 
Join Date: Dec 2007
Location: Killeen, Tx
Posts: 22
iTrader: (0)
Default Engine revs itself or throttle stuck

It's been a long time since I've been here, having been caught up in the Marine Corps and racing motorcycles but I have run into an issue and would like help before I total the car out.

I hit a curb, like those foot tall median curbs, and it cracked the wheel on the car. After getting a new wheel on there there is an issue besides the obvious alignment. When driving over 20mph the engine will rev itself/ apply throttle, with the clutch in/neutral it will sit at 5K rpm. It only does this over 20mph, if going above 20 it will apply throttle, disconnected the cruise box to rule it out. Once you push the clutch in the the revs go up to 5K and as you coast or apply brake, once you're under 20mph the revs drop to a normal idle.

The other thing about it is if you apply a hair bit of throttle, what would normally be 2,3,4K Rpm, in neutral it will fall to that RPM. However let off the throttle and it goes right back to 5K.

I'm uploading youtube videos of it in action last light and will post the links of both when the process.


Background:
97 5spd with 182K owned since 136K
All regular maint done and have replaced crank/cam sensors in the last 3 years along with other odds and ends.
trunxgp1224 is offline   Reply With Quote
Old 01-14-2013, 07:18 PM   #2
trunxgp1224
Junior Member
 
Join Date: Dec 2007
Location: Killeen, Tx
Posts: 22
iTrader: (0)
Default

Here are the two videos

This is at highway speeds. My foot is off the gas the entire time EXCEPT the last part where it only goes to 4,000 RPM my foot is giving it a little bit of gas with the clutch in. Other than that my foot is not on the gas at any point.
http://www.youtube.com/watch?v=N-ZTt...ature=youtu.be
<iframe width="560" height="315" src="http://www.youtube.com/embed/N-ZTtgDlhgc" frameborder="0" allowfullscreen></iframe>


This is the 20mph thing I was talking about. I talked through this video so it should explain itself.
http://www.youtube.com/watch?v=rBXcQ...ature=youtu.be
<iframe width="420" height="315" src="http://www.youtube.com/embed/rBXcQ_hZks0" frameborder="0" allowfullscreen></iframe>


I want to thank everyone at 318 for the help they've provided me over the years. unfortunately these are getting harder to find although I would love to have another one if this things ends up being a loss after I get it on a lift.
trunxgp1224 is offline   Reply With Quote
Old 01-14-2013, 08:40 PM   #3
hotmilk400
Senior Member
 
hotmilk400's Avatar
 
Join Date: Apr 2008
Location: Bethlehem, PA
Posts: 1,106
iTrader: (13)
Default

Wow, that doesn't sound safe at all. I never heard of a problem like that, but since the car is taking your RPM's to exactly 5k, i would assume it has to be related to the DME or maybe cruise control. If i were you, i would try disconnecting your cruise control. just disconnect the cable from the motor.

My thinking is something went wrong with it and it's trying to adjust the speed for you. Hopefully someone can shed some light on this for you. Best of luck.
hotmilk400 is offline   Reply With Quote
Old 01-15-2013, 03:04 AM   #4
trunxgp1224
Junior Member
 
Join Date: Dec 2007
Location: Killeen, Tx
Posts: 22
iTrader: (0)
Default

I unplugged the cruise box and it still did it, I'll try disconnecting the cable entirely tomorrow and see if it still persists.
trunxgp1224 is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
M44 engine oil leak - Where from? john318isau Engine 6 01-30-2012 03:19 AM
WTB: M44 engine montjuic US and North America 5 09-29-2008 07:20 PM
New Engine Needed!!!!!!!!!!!!!! billytiger Engine Swaps 2 07-31-2008 11:38 PM
FS $150 BimmerWorld E36/E46 Performance/Track Engine Mounts mischief US and North America 0 04-16-2008 10:23 PM
TI DOWN: Engine Blew! HuGo Misc 43 05-24-2007 02:08 PM


All times are GMT +1. The time now is 02:42 PM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2024, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 69.31 k/80.76 k (14.18%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.