how do i fix these

pharoah2010 · Post by **pharoah2010** » Sat Oct 23, 2010 10:52 pm

hi i have a 1.0 corsa b 1998 reg i run a diagnostic test on my car the other day and it came back withe these faults:

P0650 - (4) check light open circuit
P0100 - (2) mass airflow sensor voltage low
P1405 - (8) EGR valve feed b incorrect signal
P0505 - (0) idle control blocked

how can i fix these problems as i dont realy know much about cars lol

pharoah2010 · Post by **pharoah2010** » Thu Oct 28, 2010 4:16 pm

can any 1 help me please i have read the topic on how to clean the idle control valve but i cant seem to find the others

spikeboybarrett · Post by **spikeboybarrett** » Thu Oct 28, 2010 5:01 pm

P0650 - (4) check light open circuit

Usually means you engine managment light is missing. Happened with me. Was a nice little way that the guy covered up the EGR fault.

P0505 - (0) idle control blocked

I think theres a post about cleaning this somewhere, do a search on the forum

pharoah2010 · Post by **pharoah2010** » Thu Oct 28, 2010 5:07 pm

is the engine managment light meant to come on when you turn the ignition on

PRICER · Post by **PRICER** » Thu Oct 28, 2010 6:15 pm

yea think so

never really took that much notice but when the engines running its suposed to go off.

pharoah2010 · Post by **pharoah2010** » Thu Oct 28, 2010 6:22 pm

well myn doesnt come on when a turn the ignition on also another problem car has is that if i press the accelrator to hard the go goes like a kangroo could that be with the engine use to much fuel as its running rich cause a do 50 mile to a tenner petrol lol

Sam58 · Post by **Sam58** » Thu Oct 28, 2010 11:24 pm

Have a look at the faqs on here, there are guides to cleaning the icv or idle control valve, there is also a guide to cleaning the egr valve, and if that doesn't help your problems then there is a guide to blanking it off.
You have a problem with the mass airflow sensor, or MAS or MAF for short. This can cause your kangaroo aceleration as does the problem with the egr valve.
If you care to give me an old email address, I will send you a pdf. document with information on sensors, this could well help you out. 50 mile on a tenner is a bit low, the maf is giving the wrong info to the icu, which is causing the mixture to be too rich, therefore you are burning too much fuel.

pharoah2010 · Post by **pharoah2010** » Thu Oct 28, 2010 11:51 pm

ah ryt cheers and me email is pharoah226@hotmail.com

Sam58 · Post by **Sam58** » Sun Oct 31, 2010 2:12 am

The file is on its way, make sure and check your junk mail just in case it lands in there.
Just get in contact if you need it again.

Sam58

Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

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