El Andrew Gold Donating Members 2,036 Member For: 9y 8m 16d Gender: Male Location: Canberra ACT Posted 25/02/16 09:23 AM Author Share Posted 25/02/16 09:23 AM Thanks. I reckon I'll check for leaks with some carby cleaner and then grab a tps if don't find any leaks. I couldn't find a Torque output that would give me pedal or throttle position,with engine off or on (they were all reading zero). However in testing that, I noticed if I flicked the pedal briefly in neutral (enough to raise the rpm by a couple of hundred) the revs would surge after I'd released the pedal up to about 2000 rpm and then slowly die back down. I reckon that backs up the theories you guys have re vacuum leak or throttle related electronic issue. I wouldn't have thought blocked exhaust or ignition components would behave like that. Link to comment Share on other sites More sharing options...
El Andrew Gold Donating Members 2,036 Member For: 9y 8m 16d Gender: Male Location: Canberra ACT Posted 27/02/16 02:38 AM Author Share Posted 27/02/16 02:38 AM No obvious vacuum leaks, at least not with my skills! Tried unplugging the TPS and the thing went nuts like it did the other day. Pulled the codes and got very similar results as above - only difference was P2111 (throttle actuator control system - stuck open) instead of P2110. All other codes exactly the same (had cleared beforehand of course) Given unplugging the TPS gave almost identical behaviour, I reckon I'll throw a tps at it as suggested and see how I go. Thanks again for all the advice - I'll let you know what happens. 1 Link to comment Share on other sites More sharing options...
El Andrew Gold Donating Members 2,036 Member For: 9y 8m 16d Gender: Male Location: Canberra ACT Posted 27/03/16 02:00 AM Author Share Posted 27/03/16 02:00 AM Not much progress with this one. New TPS but issue has returned a couple of times since. Seems to be that it starts ok in park, but when I put it into drive it chucks a CEL and codes, and stumbles and shakes all over the place. Happens about once a week, and is fine again once I switch off the ignition and restart. Also put in a new PCV (no change) and unhooked. I noticed when I start it, it has been revving to about 2k for a couple of seconds, then settling down. Has always done that of course but used to be more around the 1600 mark. *unhooked battery for half a day Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 13y 1m 8d Gender: Male Location: WA, Perth Posted 07/07/16 06:30 AM Share Posted 07/07/16 06:30 AM oh how I love Was this ever resolved? If so, was it just a case of unhooking the battery for half a day? Link to comment Share on other sites More sharing options...
El Andrew Gold Donating Members 2,036 Member For: 9y 8m 16d Gender: Male Location: Canberra ACT Posted 07/07/16 08:35 AM Author Share Posted 07/07/16 08:35 AM Yes and no. The occasional ridiculous roughness hasn't come back, except for the once after the work above. So I don't think those thongs fixed it, but seems to have gone away on its own. Generally at idle it is still very slightly off - but not enough that anyone except me would notice. I feel like there is a slight roughness on light throttle, but smooth as under heavier load. Overall, I wouldn't be surprised if there is a slight vacuum leak somewhere. As much as the perfectionist in me hates it, it is probably best to leave it and see if it gets worse. If it does, it will be a lot easier and cheaper to diagnose! Also have some wear in the centre tailshaft bearing which is getting fixed next week. Might be worth seeing how that goes as it could explain what I'm feeling under light acceleration. Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 13y 1m 8d Gender: Male Location: WA, Perth Posted 07/07/16 09:54 AM Share Posted 07/07/16 09:54 AM No loose bolts on the turbo by any chance? Also, could the timing chain have skipped a tooth or two? U1900 is comms fault because of the obd dongle being plugged in. If you leave torque running and turn the car off and then turn it on, you get this code sometimes. Seems Link to comment Share on other sites More sharing options...
El Andrew Gold Donating Members 2,036 Member For: 9y 8m 16d Gender: Male Location: Canberra ACT Posted 07/07/16 10:13 AM Author Share Posted 07/07/16 10:13 AM Thanks. Yeah, not too worried about U1900. Checked all the manifold and turbo bolts the other week and all good. I haven't been bashing it so unlikely with the timing chain, but you never know! Maybe the wife is doing skids without me knowing. Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 13y 1m 8d Gender: Male Location: WA, Perth Posted 07/07/16 10:24 AM Share Posted 07/07/16 10:24 AM Nah mate not saying you bashing the limiter. I never bashed the limiter and had similar issues. Hard acceleration and decelration is not good for the timing chain and harmonic balancer? Rear turbo housing was cracked and guides were snapped. No skipped tooth for me, but chain was replaced. Link to comment Share on other sites More sharing options...
skidxr6t skids Donating Members 2,754 Member For: 12y 10d Gender: Not Telling Posted 07/07/16 10:36 AM Share Posted 07/07/16 10:36 AM (edited) hows the condition of your battery, especially the terminals? I had bad coils which caused some of these codes but also filthy battery terminals. Now I've been living life without fault codes! masda74 - for some reason I think that you are telling us lies when you say you've never bashed the limiter Edited 07/07/16 10:37 AM by johnxr6t 1 Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 13y 1m 8d Gender: Male Location: WA, Perth Posted 07/07/16 10:44 AM Share Posted 07/07/16 10:44 AM I might give the car a hard time especially with hard accelerations, but my mechanical simpathy always tries to keep the engine revs below 6000rpm. I know I have hit 6200rpm before, but that was an accident. However with me taking off in 5th today on the frewway at 80kpm, the car kinda went ape sh*t and spun tires. I crapped myself. I had to change my nappy when I got to work. Link to comment Share on other sites More sharing options...
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