Fuse/Relay questions
#1
Registered User
Thread Starter
Fuse/Relay questions
Vehicle is a 1989 toyota pickup, shortbed, 22re. SASD and all kinds of fun stuff.
First question, the fuel pump stays on no matter the key position. We pulled a circular relay looking thing off the fuse board under the hood and it stopped. Is it a relay or somethin?
Second question, would an O2 sensor too close to the head on the exhaust cause a false lean and make the engine run rich?
The dip but the O2 sensor about 5 inches from the header flange to the head. Seems a bit close.
What's the average pis one of these fuel pumps should run?
First question, the fuel pump stays on no matter the key position. We pulled a circular relay looking thing off the fuse board under the hood and it stopped. Is it a relay or somethin?
Second question, would an O2 sensor too close to the head on the exhaust cause a false lean and make the engine run rich?
The dip but the O2 sensor about 5 inches from the header flange to the head. Seems a bit close.
What's the average pis one of these fuel pumps should run?
#4
Registered User
Join Date: Jan 2008
Location: L.I ,NY
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
when you pull the relay out ...do you hear the coil drop out ? try plugging it in and pulling it out a few times.....if you hear a slight ping noise.... it means something is calling the relay to pick.. would have to hit the manual for ignition wiring schematics for that......if not the relay its self is stuck closed .......
#6
Contributing Member
iTrader: (1)
It doesnt seem like it would be too close in my opinion, unless the wires are burned or chafed it shouldnt change the readings, all the readings will come from the probe on the inside. Is there any exhaust leaks or anything, that would cause a false lean, the sensor could also be bad, if you pull it out and the probe is covered in soot and black then it is probably a bad or slow sensor. Do you have a pic to give us a better idea of what it looks like?
Last edited by James Woods; 03-07-2011 at 07:55 PM.
#7
Registered User
Thread Starter
We pulled it, it was black and sooty.
Were gonna cut the flange and move it back behind the collector so it reads off all 4 cylinders and is in a "cooler" spot. The wires got melted and chafed in the spot they were in, but the parts rig had all the wiring so we stole that.
Hopefully a new o2 sensor fixes it.
Were gonna cut the flange and move it back behind the collector so it reads off all 4 cylinders and is in a "cooler" spot. The wires got melted and chafed in the spot they were in, but the parts rig had all the wiring so we stole that.
Hopefully a new o2 sensor fixes it.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
TJWilly
95.5-2004 Tacomas & 96-2002 4Runners
6
07-31-2015 02:05 PM