my car keeps going into saftey boost (code 34)

i dont want to desconect the detonation sensor

if i fit a jwt chip

will this sought the problem out

it was runing at about 14 psi

now its runing at about 8-9 psi

 

 

steve

no, a jwt chip will still go into safety boost with the stock solenoids.

 

safety boost is 7psi BTW, are you measuring that on an aftermarket boost gauge or the useless stock one?

Paul - if its got boost jets to raise the boost, wont safety boost be higher than stock safety boost :confused:

 

Pete

U'll need to have an aftermarket chip to run 14psi how did u do that before and how did u measure it like Paul asked u before?

Paul - if its got boost jets to raise the boost, wont safety boost be higher than stock safety boost :confused:

 

Pete

 

nope, safety boost on boost jets is still 7psi. that one reason i like boost jets! stops me driving it like a nutter from cold!!! :D

Yeah Paul is correct - boost jets will still give you 7psi under safety boost conditions, however that will have slight boost spikes on WOT....

 

Code 34 is because the det sensor/harness is FUBAR. A new chip won't go into your engine, replace your det sensor and harness, then get back into its cossey socket in the ecu ;)

U'll need to have an aftermarket chip to run 14psi how did u do that before and how did u measure it like Paul asked u before?

it was run 14psi with 1mm mig tips

yes i have an after market boost gauge

i no that a chip wont repair the detenation sensor

but will it reduce the chance of deternation ?

i thought i read somewhere that it would

 

thanks

 

steve

ok, yes - you should fit an after market chip if your running that much boost, BUT - code 34 means the sensor or wiring is faulty. so you will still get code 34 & safety boost with another chip.

 

so all in all, you need to repair the wiring/det sensor AND get a new chip!!

Hello Steve,

 

If I was you I would get your car running right with no error codes before you start worrying about upgrading anything, it's not worth taking any risks................

The JWT chip doesn't have a safety map so if your car attempted to go into safety boost, it wouldn't change any settings.

 

Vijay

i have reset the ecu

and disconnected the battery for a couple of hours

i have unplugged the det sensor connector and its back to 14psi

so whats the next stage

there seems to be a similar plug under the one i have unplugged

should i look at the wires on that as well?

 

thanks for all your help

 

steve

the plug underneath is for an O2 sensor.

 

Vijay

CANT GET MY HEAD AROUND THIS ONE

cleaned all sensors

reset ecu and disconnected battery for 2 hours

went for drive car was hitting 14psi

then after about 20 miles it went back into safety boost

code 34

now if the car was deting would it go into safety boost

if so for how long and what code would it give

sorry to keep posting about this

 

steve

it could be that the sensor or wiring is heating up and failing. Code 34 is not detting - it's the sensor circuit.

 

I would reset everything and then do the same sort of journey without going into heavy boost (don'y go more than 9psi) and see what happens. If it still happens (which it probably will) I would do the resistor trick and again do the same journey, sticking to under 9 psi and see what happens.

 

Vijay

CANT GET MY HEAD AROUND THIS ONE

 

then after about 20 miles it went back into safety boost

code 34

 

FFS, try reading my reply then post again!!!!! :xxx:

thanks mate

if i disconnect the sensor is that the same as the resistor trick?

 

steve

here it is again in case you missed it!!

 

ok, yes - you should fit an after market chip if your running that much boost, BUT - code 34 means the sensor or wiring is faulty. so you will still get code 34 & safety boost with another chip.

 

so all in all, you need to repair the wiring/det sensor AND get a new chip!!

i didnt miss it

but what i was asking was if a car was in safety boost what fault code would it read

 

steve

ok, but im not sure what you cant get your head around still!!, youve got code 34 stored in the ecu, this is telling you the car has a faulty det sensor or wiring.

the ECU has now way of telling if the car is detting or not so it puts the car into safety boost.

 

there is no "code" for the car detting, the det sensor is there to listen to det & back of the timing and/or boost if it detects it.

 

so were still back to you having a defective det sensor/wiring that needs repairing!

thanks

i was confused about code 34

i was thinking that if the car was deting it would go into safety boost and read code 34

but that makes it clear that it is just a sensor failure not a detination problem

thanks for all your help

 

steve

thanks mate

if i disconnect the sensor is that the same as the resistor trick?

 

steve

 

No, this will not work. The ECU looks for the impedance of the sensor which is a pizo device and has a resistance of about 1MOhm, hence the 1MOhm resistor.

http://www.zhome.com/ZCMnL/PICS/detonationSensor/detonationSensor.html

 

Vijay

after going out in your car tonight stevo i was still impressed even though it was not running to well cant be that much of a problem to sort out

everything seems fast compared to a gt4

see you tomorow mate

i dont need a lift in the morning mate.

 

steve

ok mate no worries

http://www.zhome.com/ZCMnL/PICS/detonationSensor/detonationSensor.html

 

Vijay

 

which is the right plug on this one it shows a different one

to the one in the faq section of eigine numbers??

:confused: :confused:

 

steve