SE Closed loop conversion. Better Economy?

[vi11ain]

Can anyone tell me how to check that the O2 sensor is actually working? I do have ElanScan, but I can't see much difference between pre and post installation readings - I guess I'm just looking in the wrong place!

I have a 1990 SE, which ElanScan reports as being 9929, I fitted the Bosch O2 sensor from Rock Autos and I've installed an Everest 1499 upgrade. The check engine light doesn't illuminate (apart from before the engine starts as normal) - even when I unplugged the O2 sensor before switching off after a 30 mile drive today.

The Everest does seem to be doing its stuff as I now have nearly 1 bar boost available, whereas I only had about 0.6 bar before installing the chip.

I'm in the middle of checking the mpg to see if there's any improvement (half way though a tank of petrol), but I guess there has to be somewhere in the Elanscan data that will tell me that the ECU is receiving and acting on data from the O2 sensor.....?

Ben

[Monty]

I`ve bought the Denso 234-3014 O2 Sensor, I won`t be fitting it till i do the Turbo upgrade which won`t be till next year. But i`m just wondering were the wiring loom is where the O2 sensor plugs in to on the SE

[rip]

I`ve bought the Denso 234-3014 O2 Sensor, I won`t be fitting it till i do the Turbo upgrade which won`t be till next year. But i`m just wondering were the wiring loom is where the O2 sensor plugs in to on the SE

It should be plugged into a dummy socket which clips into the bodywork alongside the timing cover.

[Monty]

I`ve bought the Denso 234-3014 O2 Sensor, I won`t be fitting it till i do the Turbo upgrade which won`t be till next year. But i`m just wondering were the wiring loom is where the O2 sensor plugs in to on the SE

It should be plugged into a dummy socket which clips into the bodywork alongside the timing cover.

Thanks rippers, i did have a quick look yesterday and did see a plug inbetween the head light and engine mount. I`ll have another look over the weekend, just want to make sure the O2 plug fits

Next step is to get the closed loop programe from Alan, then it`s only a case of buying a Garrett Turbo and the 550 injectors only about another grand worth off gear

[rip]

Next step is to get the closed loop programe from Alan, then it`s only a case of buying a Garrett Turbo and the 550 injectors only about another grand worth off gear

Then strengthened pistons, con rods & crank.

[Monty]

Next step is to get the closed loop programe from Alan, then it`s only a case of buying a Garrett Turbo and the 550 injectors only about another grand worth off gear

Then strengthened pistons, con rods & crank.

Oh shut up! LMAO don`t give me more ideas lol. Maybe one year or 10. Stock engine should be good for 260/300 hp sauce

Anyways going offtopic, i`ll confirm tomorrow if the Denso wiring plug fits

[GeoffSmith]

i`ll confirm tomorrow if the Denso wiring plug fits

It will. Truss me, I've been doctored.

[ashm]

As another person planning to go closed-loop, is it really necessary to get a switcher? Surely if the O2 sensor dies I can just remove the chip and return the ECU to stock until I get a replacement sensor?
Or am I missing something...?

Adam

[dapinky]

Adam - you're not missing anything at all!

I already had a switcher, so just needed the closed loop programs on a chip.

I also like the idea that if the O2 sensor blows up, I can have a good range of ECU settings until I get it fixed, as opposed to the limited range which i would have otherwise.

If you have a chip with the 1499 prom code (whether a single original chip, a mountain upgrade, or a switcher) it will run closed loop equally as well as any other.

[ashm]

Just a quick note about removing the blanking screw from the exhaust... repeated soaking with penetrating oil and trying to undo after a run to warm the car up didn't work, but I got the screw out this afternoon in about 30 seconds. My advice:
Warm the car up, then get some long-nosed pliars and hold ice cubes against the blanking screw until they stop boiling off. Avoid the steam. Then get a 27mm socket on it and easily unscrew it with an 18" bar. Sorted.

[ashm]

So I've got the O2 sensor installed. According to ElanScan my Prom is a 9239, so I guess I need a 1499 chip from ESM?
Adam

[rip]

So I've got the O2 sensor installed. According to ElanScan my Prom is a 9239, so I guess I need a 1499 chip from ESM?
Adam

Yep.
I have read that O2 sensors don't like being installed without having a current run through them.
So get yer chip soon else you'll be replacing your new sensor pretty quickly.

[ashm]

I have read that O2 sensors don't like being installed without having a current run through them.
So get yer chip soon else you'll be replacing your new sensor pretty quickly.

Not sure I like the sound of that! Everything is "out of stock" on the chip shop website at the moment, should I replace the blanking screw until I can track down a chip?

[GeoffSmith]

It should be alright if it is plugged in (electrically) as the heater should be on, but if it were me, I'd swap back to the blanking plug.

[BFG in the BRG]

Hi guys - sorry about this but I am joining this thread late. The BRG is an 91/92 SE Turbo. If I wanted to go closed circuit (for the sake of the planet of course) all I need is the following

A 1499 (S2, Closed-loop) Everest chip £98 plus
an oxygen sensor which fits on the manifold for which I can get the following - all of which are plug and play - although I shall probably go Bosh (cos someone else did earlier in the thread)
BOSCH 13277
AIRTEX 5S3365
NGK 21012

ie this one from Rock Auto BOSCH Part # 13277 {Oxygen Sensor - OE Type - Upstream Sensor}
Category: Oxygen Sensor
More Info
$89.79

So total price - around £200 inc postage etc

[ashm]

ie this one from Rock Auto BOSCH Part # 13277 {Oxygen Sensor - OE Type - Upstream Sensor}
Category: Oxygen Sensor
More Info
$89.79

Check out this thread for a cheaper way to get a good sensor. Cost me about £22...

Adam

[whippit]

There might be a slight prob with this link, stevieg8571 is in the states at the moment and kindly bought the last one of amazon for me, (but they might of restocked)
it might be worth giving him a pm and ask him nicely if he could find you one at a decent price,
he offered on the other post on closed loop to sorce them whilst out there ,
the prices in the uk are sky high

[BFG in the BRG]

stevieg8571 PM'd

just one thought - what does the sensor plug in to ? I presume there is a suitable socket dangling somewhere

[ashm]

It's hanging off a loom near the offside headlight motor. I'll take a photo later...
Adam

[maz_r]

Is this the same thing?

Not £22, but better than some prices I saw whilst trawling the Interweb....

Lambda-Sensor-SUZUKI-Baleno-Sedan-1-6i-16V