Anyone know what this plug is?? - LotusTalk

steve-elise · 10-02-2009, 07:15 AM

Hi guys,
I am posting this here as I have a BWR SC and having issues and just found this plug hanging loose??

The plug has 3 wires and is shaped differently to most other plugs I have seen on the engine. From what I can see it has an Orange central wire and a black and grey wire on either side - See pics attached. This is located in a small harness near the breather pipe and belt side of the engine, just underneath the oil solenoid.

I am hoping and praying it connects to somewhere useful and that it might fix the issue I have been having.

Anyone know what it is and where it goes?

Many Thanks
Steve

Thomasio · 10-02-2009, 07:24 AM

That's about where the passenger's side VVT valve is, but I don't remember what the plug looks like.

ZTEC · 10-02-2009, 07:26 AM

Could be Knock sensor next to where the coolant tube goes into the block, possibly for your charcoal canister! Hmmm, is it in the same harness that your injectors and solenoid are in?

steve-elise · 10-02-2009, 07:34 AM

Thomasio if you mean the VVT Solenoid that is just above it. If you look in my first picture it is the gold cylindrical item closest to the camera and you can see at the top of the picture the connector is fine and there.

This loose plug I found further down the engine and yes, passenger side in the USA.

Cheers
Steve

Thomasio · 10-02-2009, 07:36 AM

Quote:

Originally Posted by steve-elise

Thomasio if you mean the VVT Solenoid that is just above it - the gold cylindrical item closest to the camera and that is fine and connected. I found this plug further down the engine and yes, passenger side in the USA.

Cheers
Steve

Drats! I wanted to win.

ZTEC · 10-02-2009, 07:42 AM

If it is in the same harness as your injectors I am betting on the knock sensor - if you have your belly pan off take a light and look up above the Mocal sandwich oil adapter and look next to the coolant lines and see if it is plugged in!

Thomasio · 10-02-2009, 07:44 AM

My money is on ZTEC for the win on this one!

steve-elise · 10-02-2009, 07:47 AM

Hi ZTEC, I do have the Belly Pan off. I tried looking from underneath but couldn't seem to see through to that location as I believe the alternator is in the way.

I'm a real novice when it comes to mechanics, can you describe what the Mocal sandwich oil adapter looks like?

Does the knock sensor have a 3-way plug like the one shown?

Many Thanks
Steve

ZTEC · 10-02-2009, 07:54 AM

Sorry the "Mocal" adapter is where your oil lines connect directly above the oil filter... Above that on the Block itself (It is up high) you have a Knock sensor to the left of where your "coolant loop" goes in and out of the block! I am just guessing but through process of elimination you will and need to figure out what isn't connected! It's tight in there but use a good flashlight and if you have a dental mirror start looking for the connectors home! I would start there.

steve-elise · 10-02-2009, 07:58 AM

Thanks ZTEC - Okay - will go and have another look again now.

If anyone else happens to have a BWR kit and know what this plug is or perhaps what the other end of the knock sensor looks like that would be great.

From what I've seen most of the other sensor/plugs around the engine seem to only have 2 wires whereas this one has 3 so must be something different

Cheers
Steve

Thomasio · 10-02-2009, 08:05 AM

That looks like an OEM connector as opposed to something that the kit would have come with, but I'm speculating.

Jermaine@VF · 10-02-2009, 08:08 AM

Looks like the TPS wire.

ZTEC · 10-02-2009, 08:13 AM

Quote:

Originally Posted by Jermaine@VF

Looks like the TPS wire.

That is the exact reason I was asking if it was on the same harness as the Injectors! - Would the car even run without the TPS?

Jermaine@VF · 10-02-2009, 08:16 AM

Quote:

Originally Posted by ZTEC

That is the exact reason I was asking if it was on the same harness as the Injectors! - Would the car even run without the TPS?

Yes... !

steve-elise · 10-02-2009, 08:39 AM

Hi guys, looked again and yes it is part of the same harness that the injectors are fed from.

Jermaine, where is the actual TPS (Is this Throttle Position Sensor?) - Is it anywhere near where I found this plug ie near the dipstick and just underneath the VVT solenoid?

My car is NOT a DBW - it is a cable throttle so is this perhaps why it is sitting disconnected? or am I way off the mark?

Cheers
Steve

mrcarcrazy · 10-02-2009, 08:47 AM

Quote:

Originally Posted by steve-elise

Hi guys, looked again and yes it is part of the same harness that the injectors are fed from.

Jermaine, where is the actual TPS (Is this Throttle Position Sensor?) - Is it anywhere near where I found this plug ie near the dipstick and just underneath the VVT solenoid?

My car is NOT a DBW - it is a cable throttle so is this perhaps why it is sitting disconnected? or am I way off the mark?

Cheers
Steve

typically on the throttle body.

steve-elise · 10-02-2009, 08:58 AM

I'm just posting a couple more pictures to give the position of the plug some better context. ZTEC I think I can just see the knock sensor wires you were talking about - see the closeup picture and from a quick google, I think the knock sensor is a 2-wire plug - but may be wrong.

I found the plug dangling further down but for the life of me can't see anywhere it goes.
If the TPS is truly on the throttle body then this plug is miles away from it.

Cheers
Steve

turbophil · 10-02-2009, 09:34 AM

TPS is 3 wires and is on the other side of the engine.. So not TPS... Knock sensor is two wires, but different colors and plug... So not Knock...

Obviously not VVT as stated before...

Not either charcoal canister sollenoids as they're both red plugs and different style...

Keep 'em coming guys

Edit- FWIW- As I recall the AC wire is a multiple pin plug that has only one wire going to it and the other wire grounds on the compressor. It does have a sub assembly though, but it doesn't strike me as the AC plug... The crank signal is blue and yellow wires as I recall and is twisted pair and insulated...I don't remember which one it is off the top of my head, but those are a few that are worth ruling out

Double edit: Doh

I see that it has 3 wires in your first post.. I was just looking at pics and didn't see the black... In either case the TPS has different colored wires, so still not TPS and the knock sensor only has two wires, so still not it...

scottyb · 10-02-2009, 10:53 AM

is it possible it is from the inertial cutt off switch?

looks like the same connector from my mod Emergency Unlock Switch – Easy Mod Pictorial

or it could be from the oil pressure sensor. Just the first things that popped into my head.

ZTEC · 10-02-2009, 11:11 AM

I know the alternator has a 3 pin against the firewall but I am trying to remember what else is on the injector harness!

10-02-2009, 07:15 AM	#1 (permalink)
steve-elise Registered User Join Date: Jul 2009 Posts: 39	Anyone know what this plug is?? Hi guys, I am posting this here as I have a BWR SC and having issues and just found this plug hanging loose?? The plug has 3 wires and is shaped differently to most other plugs I have seen on the engine. From what I can see it has an Orange central wire and a black and grey wire on either side - See pics attached. This is located in a small harness near the breather pipe and belt side of the engine, just underneath the oil solenoid. I am hoping and praying it connects to somewhere useful and that it might fix the issue I have been having. Anyone know what it is and where it goes? Many Thanks Steve Attached Images

10-02-2009, 07:24 AM	#2 (permalink)
Thomasio really light stuff Join Date: Jul 2003 Posts: 3,503	That's about where the passenger's side VVT valve is, but I don't remember what the plug looks like. __________________ 07 SY Exige S Really Light Stuff Intercooler . RLS Tubes . RLS Water/Methanol Injection . RLS 3.0" Pulley . RLS Wing Plates . RLS CF Window Panel

10-02-2009, 07:26 AM	#3 (permalink)
ZTEC Third Eye Open Join Date: Jan 2006 Location: Florida Posts: 1,738 Images: 3	Could be Knock sensor next to where the coolant tube goes into the block, possibly for your charcoal canister! Hmmm, is it in the same harness that your injectors and solenoid are in? __________________ GO: Vision Function Stage II Intercooled Bliss with Charlie's ECU magic and Ronin's Tenacity! STOP: DBA 4000's, Porterfield R4! TURN: Nitron S/A's Toyo RA1's 225/245 on Rota's!

10-02-2009, 07:42 AM	#6 (permalink)
ZTEC Third Eye Open Join Date: Jan 2006 Location: Florida Posts: 1,738 Images: 3	If it is in the same harness as your injectors I am betting on the knock sensor - if you have your belly pan off take a light and look up above the Mocal sandwich oil adapter and look next to the coolant lines and see if it is plugged in! __________________ GO: Vision Function Stage II Intercooled Bliss with Charlie's ECU magic and Ronin's Tenacity! STOP: DBA 4000's, Porterfield R4! TURN: Nitron S/A's Toyo RA1's 225/245 on Rota's!

10-02-2009, 07:44 AM	#7 (permalink)
Thomasio really light stuff Join Date: Jul 2003 Posts: 3,503	My money is on ZTEC for the win on this one! __________________ 07 SY Exige S Really Light Stuff Intercooler . RLS Tubes . RLS Water/Methanol Injection . RLS 3.0" Pulley . RLS Wing Plates . RLS CF Window Panel

10-02-2009, 07:34 AM	#4 (permalink)
steve-elise Registered User Join Date: Jul 2009 Posts: 39	Thomasio if you mean the VVT Solenoid that is just above it. If you look in my first picture it is the gold cylindrical item closest to the camera and you can see at the top of the picture the connector is fine and there. This loose plug I found further down the engine and yes, passenger side in the USA. Cheers Steve

10-02-2009, 07:47 AM	#8 (permalink)
steve-elise Registered User Join Date: Jul 2009 Posts: 39	Hi ZTEC, I do have the Belly Pan off. I tried looking from underneath but couldn't seem to see through to that location as I believe the alternator is in the way. I'm a real novice when it comes to mechanics, can you describe what the Mocal sandwich oil adapter looks like? Does the knock sensor have a 3-way plug like the one shown? Many Thanks Steve

10-02-2009, 07:54 AM	#9 (permalink)
ZTEC Third Eye Open Join Date: Jan 2006 Location: Florida Posts: 1,738 Images: 3	Sorry the "Mocal" adapter is where your oil lines connect directly above the oil filter... Above that on the Block itself (It is up high) you have a Knock sensor to the left of where your "coolant loop" goes in and out of the block! I am just guessing but through process of elimination you will and need to figure out what isn't connected! It's tight in there but use a good flashlight and if you have a dental mirror start looking for the connectors home! I would start there. __________________ GO: Vision Function Stage II Intercooled Bliss with Charlie's ECU magic and Ronin's Tenacity! STOP: DBA 4000's, Porterfield R4! TURN: Nitron S/A's Toyo RA1's 225/245 on Rota's!

10-02-2009, 07:58 AM	#10 (permalink)
steve-elise Registered User Join Date: Jul 2009 Posts: 39	Thanks ZTEC - Okay - will go and have another look again now. If anyone else happens to have a BWR kit and know what this plug is or perhaps what the other end of the knock sensor looks like that would be great. From what I've seen most of the other sensor/plugs around the engine seem to only have 2 wires whereas this one has 3 so must be something different Cheers Steve

10-02-2009, 08:05 AM	#11 (permalink)
Thomasio really light stuff Join Date: Jul 2003 Posts: 3,503	That looks like an OEM connector as opposed to something that the kit would have come with, but I'm speculating. __________________ 07 SY Exige S Really Light Stuff Intercooler . RLS Tubes . RLS Water/Methanol Injection . RLS 3.0" Pulley . RLS Wing Plates . RLS CF Window Panel

10-02-2009, 08:08 AM	#12 (permalink)
Jermaine@VF Crazy Car Guy Join Date: Apr 2008 Posts: 203	Looks like the TPS wire. __________________ www.VisionFunction.com - Site Under Construnction - Stay Tuned

10-02-2009, 08:39 AM	#15 (permalink)
steve-elise Registered User Join Date: Jul 2009 Posts: 39	Hi guys, looked again and yes it is part of the same harness that the injectors are fed from. Jermaine, where is the actual TPS (Is this Throttle Position Sensor?) - Is it anywhere near where I found this plug ie near the dipstick and just underneath the VVT solenoid? My car is NOT a DBW - it is a cable throttle so is this perhaps why it is sitting disconnected? or am I way off the mark? Cheers Steve

10-02-2009, 08:58 AM	#17 (permalink)
steve-elise Registered User Join Date: Jul 2009 Posts: 39	I'm just posting a couple more pictures to give the position of the plug some better context. ZTEC I think I can just see the knock sensor wires you were talking about - see the closeup picture and from a quick google, I think the knock sensor is a 2-wire plug - but may be wrong. I found the plug dangling further down but for the life of me can't see anywhere it goes. If the TPS is truly on the throttle body then this plug is miles away from it. Cheers Steve Attached Images

10-02-2009, 09:34 AM	#18 (permalink)
turbophil Plug Whisperer Join Date: Dec 2005 Location: Kansas City/ Overland Park Posts: 2,545 Images: 6	TPS is 3 wires and is on the other side of the engine.. So not TPS... Knock sensor is two wires, but different colors and plug... So not Knock... Obviously not VVT as stated before... Not either charcoal canister sollenoids as they're both red plugs and different style... Keep 'em coming guys Edit- FWIW- As I recall the AC wire is a multiple pin plug that has only one wire going to it and the other wire grounds on the compressor. It does have a sub assembly though, but it doesn't strike me as the AC plug... The crank signal is blue and yellow wires as I recall and is twisted pair and insulated...I don't remember which one it is off the top of my head, but those are a few that are worth ruling out Double edit: Doh I see that it has 3 wires in your first post.. I was just looking at pics and didn't see the black... In either case the TPS has different colored wires, so still not TPS and the knock sensor only has two wires, so still not it... __________________ \| '05 GG LSS Elise \| A Track Chariot \| BOE ClamHinge \| BOE TVS SuperCharger 280whp/180wtq \| EFI Standalone Engine Management \| BOE Fuel Surge System \| BOE Lotus Tow Package See my car at BOE Fabrication: www.boefabrication.com *----->Last Updated: 9/25/2009* If something ain't worth doing right, it ain't worth doing... *Whoever thought working on a Lotus is hard, clearly hasn't tried it. Pick up a wrench and get some grease under your nails* Last edited by turbophil : 10-02-2009 at 09:47 AM.

10-02-2009, 10:53 AM	#19 (permalink)
scottyb Registered User Join Date: Dec 2004 Posts: 3,683	is it possible it is from the inertial cutt off switch? looks like the same connector from my mod Emergency Unlock Switch – Easy Mod Pictorial or it could be from the oil pressure sensor. Just the first things that popped into my head. Last edited by scottyb : 10-02-2009 at 11:00 AM.

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10-02-2009, 11:11 AM	#20 (permalink)
ZTEC Third Eye Open Join Date: Jan 2006 Location: Florida Posts: 1,738 Images: 3	I know the alternator has a 3 pin against the firewall but I am trying to remember what else is on the injector harness! __________________ GO: Vision Function Stage II Intercooled Bliss with Charlie's ECU magic and Ronin's Tenacity! STOP: DBA 4000's, Porterfield R4! TURN: Nitron S/A's Toyo RA1's 225/245 on Rota's!