CEL light how to reset? 850 t5 1994

Merc85 · Apr 17th, 2011, 19:19

Hi, Does anyone know how to reset the Cel/lamdba light on my 1994 pre obd2 volvo 850 t5.

As my old car had a obd port under the coin tray, this one has the code reader by the ecu box.

martybelfastt5 · Apr 17th, 2011, 19:59

at worst disconect the battery overnight,its a master reset not sure of exact time think around four hours,,also if you join the battery terminals with the battery out its speeds the process,,also an instant tune up belive it or not lol,,

bobbych · Apr 17th, 2011, 21:50

taking the battery out will only mask the issue. the light is on for a reason, so you should pull the codes, then reset it using the diagnostic box under the bonnet

Chris_Rogers · Apr 17th, 2011, 22:34

http://volvospeed.com/CheckEngine.php

martybelfastt5 · Apr 17th, 2011, 23:08

i was thinking prob had been fixed,,so yes finding its course should be first lol,,,

Merc85 · Apr 18th, 2011, 18:24

Hi the light coming on was my own fault after working on the car i forgot to plug the maf back in.

Obviously when i started the car it through a cel.

bobbych · Apr 19th, 2011, 11:47

ok you should be able to clear the fault and the light will go out

DEANO · Apr 19th, 2011, 11:59

I had the same problem after i jump started mine one morning, I removed the battery fully charged it over night re connected fault sorted no light on dash

surrey_man · Apr 19th, 2011, 13:45

Do u have the A & B box ? found by blue washer bottle cap

Andy Northface · Apr 19th, 2011, 14:28

Quote:

Originally Posted by DEANO

I had the same problem after i jump started mine one morning, I removed the battery fully charged it over night re connected fault sorted no light on dash

Same as mine, after the last owner had battery problems and kept bump starting the car bringing the light on.I left the leads off overnight and re-connected the following morning and no light!! ( thanks to Keith ( The Hooded Claw ) and Andy ( Thanatos ) for this tip.

Apr 17th, 2011, 19:19	#1
Merc85 Premier Member Last Online: Apr 19th, 2024 12:58 Join Date: Dec 2009 Location: Harwich	CEL light how to reset? 850 t5 1994 Hi, Does anyone know how to reset the Cel/lamdba light on my 1994 pre obd2 volvo 850 t5. As my old car had a obd port under the coin tray, this one has the code reader by the ecu box. __________________ HLM304, Forge unos 17.5psi at 3.8 bar, 18t, Me7 Manifold, Blues, Walbro, De-cat, Ported n Polished Head, 3" Dp stainlesss exhaust, Carbon Air intake, Polly Bushed thoughout.

Apr 17th, 2011, 19:59	#2
martybelfastt5 Premier Member Last Online: Jul 4th, 2022 16:48 Join Date: Feb 2007 Location: belfast View Photos By: martybelfastt5	at worst disconect the battery overnight,its a master reset not sure of exact time think around four hours,,also if you join the battery terminals with the battery out its speeds the process,,also an instant tune up belive it or not lol,, __________________ 1995 black 854 t5r man,

Apr 17th, 2011, 21:50	#3
bobbych Premier Member Last Online: Jan 28th, 2017 13:15 Join Date: Oct 2009 Location: Leuchars, St Andrews View Photos By: bobbych	taking the battery out will only mask the issue. the light is on for a reason, so you should pull the codes, then reset it using the diagnostic box under the bonnet __________________ 1994 850 TURBO (2008 - 2011) Now Scrapped Sadly Metallic Grey Full Leather

Apr 17th, 2011, 23:08	#5
martybelfastt5 Premier Member Last Online: Jul 4th, 2022 16:48 Join Date: Feb 2007 Location: belfast View Photos By: martybelfastt5	i was thinking prob had been fixed,,so yes finding its course should be first lol,,, __________________ 1995 black 854 t5r man,

Apr 18th, 2011, 18:24	#6
Merc85 Premier Member Last Online: Apr 19th, 2024 12:58 Join Date: Dec 2009 Location: Harwich	No Problem Just wanna reset the light Hi the light coming on was my own fault after working on the car i forgot to plug the maf back in. Obviously when i started the car it through a cel. __________________ HLM304, Forge unos 17.5psi at 3.8 bar, 18t, Me7 Manifold, Blues, Walbro, De-cat, Ported n Polished Head, 3" Dp stainlesss exhaust, Carbon Air intake, Polly Bushed thoughout.

Apr 17th, 2011, 22:34	#4
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	http://volvospeed.com/CheckEngine.php

Apr 19th, 2011, 11:47	#7
bobbych Premier Member Last Online: Jan 28th, 2017 13:15 Join Date: Oct 2009 Location: Leuchars, St Andrews View Photos By: bobbych	ok you should be able to clear the fault and the light will go out __________________ 1994 850 TURBO (2008 - 2011) Now Scrapped Sadly Metallic Grey Full Leather

Apr 19th, 2011, 11:59	#8
DEANO Member Last Online: Jan 29th, 2012 19:06 Join Date: Feb 2006 Location: Derby	I had the same problem after i jump started mine one morning, I removed the battery fully charged it over night re connected fault sorted no light on dash

Apr 19th, 2011, 13:45	#9
surrey_man Premier Member Last Online: May 26th, 2016 23:05 Join Date: Jul 2008 Location: Dulwich London	Do u have the A & B box ? found by blue washer bottle cap __________________ '01 Silver V70 2.3 lt Pasted volvos '92 Silver 940se Turbo Easte 7 Seater 2.0lt BF200FT '94 Green 850 GLT 2.5lt 7 seater '97 850 CD T5 2.3lt full leather 7 Seater

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)