Ihar
Moderator
Lada Niva Driver
Honour thy forefathers and drink beer, they did
Posts: 1,520
Location: Gauteng
Town: Roodepoort
Registered: Mar 4, 2011 17:30:11 GMT 2
Karma: Exalt | Smite
|
Post by Ihar on Dec 13, 2013 7:02:42 GMT 2
I received the following message from Kelli on Facebook. Please can a TBI fundi advise?
Hi Steve, I hope you are well. I had an auto electrician perform the paper clip trick to try and diagnose the problem. Codes 12 and 44 was reported. He says not to worry about code 12? For code 44 I assume i need to go buy a new oxygen sensor? and that will hopefully be the end of the jerking...i feel doubtful but its worth a try. Can you advise on a sensor that would be OK to use please?
Tjeers
Steve
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 13, 2013 7:33:14 GMT 2
Pretty sure it's in the spares list. Did she replace/check the hoses to the map control unit?
|
|
Kelli
New Niva Petrol Head
Posts: 16
Location: Western Cape
Town: Cape Town
Registered: Aug 2, 2013 9:58:07 GMT 2
Karma: Exalt | Smite
|
Post by Kelli on Dec 13, 2013 9:01:24 GMT 2
Hi we have had bad jerking since owning the Lada in May and we cant get to the bottom of it. we have changed, fuel filter, TPS, spark plugs, oil and air filters, changed all oils and used some carb cleaner, but nothing has made a difference. i saw this recent post and it sounds exactly the same as our problem but he was lucky enough to find the issue. locsa.proboards.com/thread/1882/jerking-ladathe spares list for a Oxygen Sensor would be a Bosch and we have been quoted R1200 for a new one. i am just trying to get some advice before we spend the cash. thanks for any info/advice you can give
|
|
Kelli
New Niva Petrol Head
Posts: 16
Location: Western Cape
Town: Cape Town
Registered: Aug 2, 2013 9:58:07 GMT 2
Karma: Exalt | Smite
|
Post by Kelli on Dec 13, 2013 9:13:15 GMT 2
the hoses seem fine
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 13, 2013 9:32:04 GMT 2
Shop around for the Oxygen sensor. One of the owners in Cape Town paid R780 for his in Aug/Sept this year. Did you replace the fuel filter with the proper high pressure steel canister? See post re "very dangerous modification" Has the sieve on the fuel pump in the tank been cleaned? The pipes on the Map sensor must be correctly fitted and not perished at all See post on TBI locsa.proboards.com/thread/1609/throttle-body-injection-specific-problems?page=1 (at least I think the diagram is there) Also see my PM Spikes
|
|
Kelli
New Niva Petrol Head
Posts: 16
Location: Western Cape
Town: Cape Town
Registered: Aug 2, 2013 9:58:07 GMT 2
Karma: Exalt | Smite
|
Post by Kelli on Dec 13, 2013 10:29:17 GMT 2
yes i think we will shop around, i did see he purchased one for R780.
the very dangerous modification post is about my Lada, we managed to source the original piping and used the GUD E106 fuel filter. im very glad we got that sorted but it hasnt made a difference with the jerking.
we will look at the seive on the fuel pump and check the MAP sensor pipes and will let you know. thanks
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 13, 2013 10:34:12 GMT 2
The plastic pipes on the Throttle are prone to breaking, please take care.
Any leaks on the E106 fuel filter?
|
|
Kelli
New Niva Petrol Head
Posts: 16
Location: Western Cape
Town: Cape Town
Registered: Aug 2, 2013 9:58:07 GMT 2
Karma: Exalt | Smite
|
Post by Kelli on Dec 13, 2013 10:42:53 GMT 2
no leaks using that filter so far and it seems to be doing its job fine.
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 13, 2013 19:22:59 GMT 2
Thanks, Kelli.
|
|
ladanivabelgium
Veteran Niva Petrol Head
Posts: 962
Location: EU
Town: Kessel, Belgium
Registered: Nov 5, 2010 19:50:31 GMT 2
Karma: Exalt | Smite
|
Post by ladanivabelgium on Dec 13, 2013 19:38:42 GMT 2
kelli, i can't say this enough: the reliability of a Niva (and any car for that matter) is the quality of the spare parts and the skills of the mechanic
as for your problem: the oxygen sensor almost never gets faulty
first of all: BE VERY SURE the vacuum lines are not leaking. 'seem fine' is not good enough. Test with brake cleaner by spraying on the vaccum lines with running engine. When the engives revs, there is a leak. Also make VERY sure there is no leak in the exhoaust manifold. If there is, the sensor will pick up extra oxygen and send wrong info to the ecu Check all the sensor wires for open circuit or shorts
Test procedure for code 44: one needs a Tech 1 (lada tool) to check all the parameters. I have one, but obvious i can't help you with that.
sorry i can't help you better
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 14, 2013 8:40:12 GMT 2
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 14, 2013 8:41:22 GMT 2
kelli, i can't say this enough: the reliability of a Niva (and any car for that matter) is the quality of the spare parts and the skills of the mechanic as for your problem: the oxygen sensor almost never gets faulty first of all: BE VERY SURE the vacuum lines are not leaking. 'seem fine' is not good enough. Test with brake cleaner by spraying on the vaccum lines with running engine. When the engives revs, there is a leak. Also make VERY sure there is no leak in the exhoaust manifold. If there is, the sensor will pick up extra oxygen and send wrong info to the ecu Check all the sensor wires for open circuit or shorts Test procedure for code 44: one needs a Tech 1 (lada tool) to check all the parameters. I have one, but obvious i can't help you with that. sorry i can't help you better Thanks Jan!
|
|
ladanivabelgium
Veteran Niva Petrol Head
Posts: 962
Location: EU
Town: Kessel, Belgium
Registered: Nov 5, 2010 19:50:31 GMT 2
Karma: Exalt | Smite
|
Post by ladanivabelgium on Dec 14, 2013 9:15:20 GMT 2
is the temperature sensor for the ecu ok? It's NOT the same sensor as for the gauge. The gauge sensor sits in the cilinder head near spark plug 4, the ecu sensor sits just above the water pump in an aluminum T-piece and has (i think) green and orange wires. A faulty temp sensor does not produce a fault code. Test resistance of the sensor between the two connections test values
|
|
Kelli
New Niva Petrol Head
Posts: 16
Location: Western Cape
Town: Cape Town
Registered: Aug 2, 2013 9:58:07 GMT 2
Karma: Exalt | Smite
|
Post by Kelli on Dec 15, 2013 13:22:33 GMT 2
thanks spikes and ladanivabelgium for the information. we inspected the sieve on the fuel pump and it is clean. a pipe from the tank to the separator was squashed which we have now freed. the female pin in the plug on the oxygen sensor was slightly higher than the others which we have corrected. im not saying this has sorted the jerking but it has driven a bit more consistent than normal. we did some maintenance yesterday including flushing the radiator and we notice steam coming from the exhaust. does that mean anything? the sound of the exhaust doesn't sound healthy when revving. we are going to investigate all the points raised above, check every pipe etc and will let you know the outcome. thanks again guys!
|
|
|
Post by keithbatkins on Dec 15, 2013 14:52:34 GMT 2
Hi Kelli. Steam from the exhaust usually means a blown cylinder head gasket. Could that be the cause of your bad running ? Hope that you can come right soon. Regards and best wishes for 2014. Keith and CERATOTH
|
|
spikes
Moderator
Posts: 3,689
Location: Mpumalanga
Town: Nelspruit
Registered: Apr 19, 2010 19:39:51 GMT 2
Karma: Exalt | Smite
|
Post by spikes on Dec 15, 2013 18:01:43 GMT 2
Is the NIVA losing water that you cannot trace to a leak?
Radiator specialists can trace leaking head gasket/cracked cylinder head.
|
|