JohnPat Posted August 13, 2014 Share Posted August 13, 2014 Since I got my Z Roadster a couple of months ago it has been hesitant over the first mile or so with a noticeable "bounce" of the rev counter around 1750rpm. Bearing in mind I live in Oman with an ambient temperature of over 30 degrees plus all day I did not put it down to the engine being cold. I had the car serviced by the dealer; oil change (forgot to check what grade), new filters and sparks etc but the problem persisted, somedays worse than others but still there. Having searched a few forums for ideas the MAF sensors came up as a possible cause. Sussed out how to clean them but could not find any MAF sensor cleaner in country, I checked all the connections on the sensors and ensured they were screwed down tight. The passenger side MAF sensor screwheads are badly worn which causes me some concern as they must have had some attention before. Other forums suggested the accelerator "relearning" process which I followed, still the problem persisted if a little less jerky. Today I had the oil changed again, not sure what was in there from the dealer but I used BP VISCO 5000 5W40 this time, best available at the local garage. The problem now seems to have resolved itself but will monitor over the coming days. I am returning to UK next month and might consider bringing the MAF sensors with me for a clean. MAF cleaner is readily available in UK but cannot be posted out here and bringing a can back in my hold luggage might not go down to well as it is a solvent and potentially explosive! Looking forward to a smoother ride :-) Quote Link to comment Share on other sites More sharing options...
BulletMagnet Posted August 13, 2014 Share Posted August 13, 2014 You can also use Electrical Contact Cleaner to clean MAF sensor, but be careful when doing so as the wire is delicate Quote Link to comment Share on other sites More sharing options...
JEMAN Posted August 13, 2014 Share Posted August 13, 2014 I used IPA, it's used cleaning circuit boards and stuff. I didn't use a brush, just agitated it around and then left it there for a while In it. After half an hour I took it out, let it dry and then plugged it back in. All good you must get an awful lot of sand build up in places our cars never would. Good luck and I'm sure you will get it sorted Quote Link to comment Share on other sites More sharing options...
JohnPat Posted August 13, 2014 Author Share Posted August 13, 2014 Thanks both for the tip. Car has been fine all evening but if it starts playing up again I will use the cleaner you mentioned Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.