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Topic: P1761 fault code. (Read 2255 times) |
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waders
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I have been experiencing gearbox problems along with a flashing OD light on my 2L auto. I have cleaned the MAF, but to no avail. The car will not change from 2nd to 3rd gear unless I back off the throttle and let the revs drop to around 2,500. I was given an error code by a Crypton tuner (HO2 sensor gone) of P1761. Can anyone tell me if this code really means my gearbox needs an overhaul, can I just change the number 3 solenoid or should I still try the MAF?
Thanks
Barry 
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Eric_R
Administrator
Cosworth Owner 1998 - 2006 & site co-founder
Posts: 1792
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Re: P1761 fault code.
« Reply #1 on: Nov 15th, 2004, 12:48am » |
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Waders,
Clean the MAF anyway, because it improves mpg and smooths the gearbox changes, but I don't think it is responsible for the DTC you mention. The dirty MAF normally produces the P0733 Incorrect ratio error - not the same thing at all.
P1761 means that the solenoid is not performing properly. It is either not operating or is jammed on. Yes, a gearbox specialist would be able to change the solenoid itself from outside the autobox. Ring round for some quotes.
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After a Cosworth, anything else is just ... ordinary
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waders
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Thanks Eric,
Phoned around a load of gearbox specialists, going in tomorrow to have the number 3 solenoid changed. Total including VAT £220. Chuffed!  Any members need a gearbox specialist in North London area willing to do what you ask and not what they want  feel free to contact me. I will post the results of this solenoid change in a couple of days. 
Waders.
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waders
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The Outcome.
So, after a longish chat with an auto specialist , we came to the conclusion that Shift Solenoid #3 is not at fault!! Shift #3 opperates 3rd to overdrive only  , and my problems definatly 2nd to 3rd, thats #2 solenoids job. Ok, time to get some more OBD done.
Battery disconected for 10 mins then an 85 mile drive to get OBD done.
(thanks Dave and Chris) .
More codes.... P0113 Intake Air Temperature circuit High Input  (to be looked into), P1270 Engine RPM or Vehicle Speed Limiter Reached  (oops thats my fault) , and P0756 Shift Solenoid No. 2 Performance .
No #3 solenoid probs !!!
Back to auto shop and I have #2 solenoid changed. This has sorted out my "no change" problems 100% .
I Feel the P1761 error code must have been generated from my originaly dirty MAF confusing the EECV (flashing O/D light and maybe the P0113 fault had some influence?) or perhaps it stuck open/closed but i never noticed!!! Anyhow now I have all the gears again , I'm off for a drive .
Thanks for all the help guys, you know who you are .
I can recomend an auto shop in north london if anyone is in need!!! Genuine Man , such a rare thing these days.(only paid £220inc as quoted but took up his time and knoledge).
Waders. (Ellie says ta too)
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Dave Boulton
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Barry,
Glad your drive the other night paid off - a good night too anyway eh?! Sounds like you can't beat a good auto box specialist - also sounds like he should be on the recommended page on the main site for the benefit of others?
I've always had a problem with the change from 1-2, 2-1 (it's a little clunky) but cleaning the MAF, replacing the MAF (for another reason) has made no difference. Reckon I'll try an auto box place around here - just as soon as Julie has forgotten what the work at the MOT cost and I've renounced eBay for a while BTW, not suggesting that cleaning the MAF isn't the way to go - if it's easy and cheap on these cars then that's gotta be a good start! The FMD diagnosis "needs a new box" was not an option - it's not that bad.
It's always "nice" to see the codes for the first time - especially when they all make sense.
Hope this "Hampshire Xmas Do" comes off - will you be bringing the Postman Pat van down for some OBD? (Preliminary OBD code analysis: "It's a Vauxhall...")
Cheers,
Dave
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waders
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Dave,
if you can find somewhere to stick your plug in , we'll bring Ellie's postie van along!
I think your "it's a Vauxhall" is as close as OBD will ever get! 
Regards Barry.
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