help car redlining by it self
#1
B*a*n*n*e*d
Thread Starter
Join Date: Dec 2011
Location: Los Angeles , Ca
Posts: 627
Likes: 0
Received 0 Likes
on
0 Posts
help car redlining by it self
i turned car on today it hesitated , i gave it some gas it some gas the idle shot to 1800 i unplugged ecu ...it went down a little bit so i thought it was ok ..i hopped on the freeway and drove a mile before the car started redlining crazy! i immedately took key out and coasted to the side of the road....i started car again and it did it again...i popped hood and i noticed a little of play in the throttle cable i wiggled it to see if it something was out of the ordinary ...i started car and it was back at 1500 wtf i didnt dare drive the car i got it towed home ...what happend
#2
Honda-Tech Member
Join Date: Nov 2007
Location: dallas, tx, usa
Posts: 364
Likes: 0
Received 0 Likes
on
0 Posts
Re: help car redlining by it self
You unplug the ecu while it was on???
And you problem got a vacuum leak if its just revving up by itself.
I remind starting my car with the pcv hose off and it just rev up like I was hitting wot.
So check for vac leaks. Cracks in hose. Broken hoses, intake gasket, tb gasket etc..
Also clean your iacv it could be getting stuck open.
And you problem got a vacuum leak if its just revving up by itself.
I remind starting my car with the pcv hose off and it just rev up like I was hitting wot.
So check for vac leaks. Cracks in hose. Broken hoses, intake gasket, tb gasket etc..
Also clean your iacv it could be getting stuck open.
#3
Honda-Tech Member
#4
Re: help car redlining by it self
my car sometimes idles at 1800, then drops back down to the usual 500-800 range, so I'm assuming it's normal?
As far as the redline goes, check for vac. leaks like they said. Another thing, is that throttle cable really tight or is there some loose play present? I, like an idiot, tightened that cable on an older car (Sentra 02') to improve throttle response. It worked at first, but a few mins into the drive, the rev's shot up like hell and started redlining while I was on neutral.. it was scary. I pulled over and loosened the cable immediately. Did you mess with that cable?
As far as the redline goes, check for vac. leaks like they said. Another thing, is that throttle cable really tight or is there some loose play present? I, like an idiot, tightened that cable on an older car (Sentra 02') to improve throttle response. It worked at first, but a few mins into the drive, the rev's shot up like hell and started redlining while I was on neutral.. it was scary. I pulled over and loosened the cable immediately. Did you mess with that cable?
#5
I like the tuna here
Re: help car redlining by it self
It is supposed to idle at 1500-1800 when the engine is cold, then as it warms up, the idle should go down to 750 or so. Sounds to me like it's almost certainly a vacuum leak.
#7
B*a*n*n*e*d
Thread Starter
Join Date: Dec 2011
Location: Los Angeles , Ca
Posts: 627
Likes: 0
Received 0 Likes
on
0 Posts
Re: help car redlining by it self
its a b20b civic, and what had happen was my mechanic when my iacv started acting after i did a couple hard runs, he adjusted the idle to where he wanted it with the throttle
Last edited by b20bFourDoorCivicLX; 04-16-2013 at 04:24 PM.
Trending Topics
#8
Re: help car redlining by it self
He needs to take it off and clean it. Two bolts and it should come out of the manifold. two coolant lines on the bottom. Pull it off and soak it in brake parts cleaner. Your car should have a consistent idle afterwards. Might be worth the time to pull off the FITV under the throttle body and show it some love too.
#10
Honda-Tech Member
Join Date: Nov 2007
Location: dallas, tx, usa
Posts: 364
Likes: 0
Received 0 Likes
on
0 Posts
Re: help car redlining by it self
its a b20b civic, and what had happen was my mechanic disconnected my iacv and connected it with my tps, he did some weird **** i never seen anyone do. anyway what had happen yesterday on the freeway was my iacv turned back on and i was getting all kinds of crazy idles and it just was to much when i jumped on the freeway,
i went back to the shop and he hooked up my iacv and now my cars better and my a/c now works normal! but my idle roams and hovers i think i need a new one....he said it was probably clogged ...
i went back to the shop and he hooked up my iacv and now my cars better and my a/c now works normal! but my idle roams and hovers i think i need a new one....he said it was probably clogged ...
#11
B*a*n*n*e*d
Thread Starter
Join Date: Dec 2011
Location: Los Angeles , Ca
Posts: 627
Likes: 0
Received 0 Likes
on
0 Posts
Re: help car redlining by it self
bro before i get rude and start going off , because i did get offended
, i do not need a new mechanic, he did my whole swap,and a excellent job at it.
when i got my car back my iacv was acting up, so he messed with the throttle so it raised the idle to where he wanted it
but now my iacv works correctly
, i do not need a new mechanic, he did my whole swap,and a excellent job at it.
when i got my car back my iacv was acting up, so he messed with the throttle so it raised the idle to where he wanted it
but now my iacv works correctly
Last edited by b20bFourDoorCivicLX; 04-16-2013 at 04:19 PM.
#12
Honda-Tech Member
Join Date: Nov 2007
Location: dallas, tx, usa
Posts: 364
Likes: 0
Received 0 Likes
on
0 Posts
Re: help car redlining by it self
bro before i get rude and start going off , because i did get offended
, i do not need a new mechanic, he did my whole swap,and a excellent job at it.
when i got my car back my iacv was acting up, so he messed with the throttle so it raised the idle to where he wanted it
but now my iacv works correctly
, i do not need a new mechanic, he did my whole swap,and a excellent job at it.
when i got my car back my iacv was acting up, so he messed with the throttle so it raised the idle to where he wanted it
but now my iacv works correctly
its just wasnt tge right way he did it. I seen tons of crap *** stuff done.
im a mechanic myself and I fix alot of hack jobs.
Thread
Thread Starter
Forum
Replies
Last Post
Hill4589
Honda Civic / Del Sol (1992 - 2000)
12
02-10-2010 03:49 PM
inane
Honda Civic / Del Sol (1992 - 2000)
10
05-19-2007 05:36 AM
Vp Special K
Honda Civic / Del Sol (1992 - 2000)
26
11-09-2003 10:24 AM