300944 Posted November 20, 2016 Posted November 20, 2016 Hi I am very new to the 300zx. Always wanted one when I was 10. So 6 weeks ago I purchased a 1990 jape Na auto model with 40000 milēson the clock. Everything Works as it should and recently drove up and back from the nec classic car show without an issue. However i went to use my car this week and it started to splutter and idle high. So today i took it for a spin and will only go to 2500 rpm then then idle gets erratic and wont go over 40mph. I read that the maf may be at fault so I have removed the induction kit, plug from maf and cleaned throttle flaps with Carb cleaner, I also tested codes on ECU and got 1 long flash and two shorts. Which I guess is maf. Car runs the same with maf connected and removed and still same problems.... what should I be looking for Any help would be much appreciated Quote
Alic Posted November 20, 2016 Posted November 20, 2016 Sounds like you are in limp mode with probably the MAF at fault as you say. I can't really suggest anything other than trying a known working MAF so ill let others make some suggestions. Oh and welcome to the club Quote
Gaz 300 Posted November 20, 2016 Posted November 20, 2016 Welcome to the club Marc and yes you might need to try a working maf to see if that cures your Z. Quote
300944 Posted November 20, 2016 Author Posted November 20, 2016 thanks for the welcomes.... another question... if U have a faulty maf will you still get the same symptoms with it plugged. Because mine is doing it both ways. Is the only way to clear the code and resume normality by having a working unit Quote
Stephen Posted November 20, 2016 Posted November 20, 2016 One long and two short is code 12, which is MAF circuit. The code plus your symptoms I'd agree with your diagnosis. They don't like getting wet, common issue with them. Try drying it out but I suspect it's potentially shot. Remember the code is for the circuit not specifically the MAF itself. So damaged/poor wiring or connections could yield the same fault. Unplugging the MAF, it should run much smoother but be limited to about 3k. You may need to reset the ECU to achieve this. Quote
300944 Posted November 20, 2016 Author Posted November 20, 2016 think that's what it may be I snow foamed the car and thoroughly washed it. So shall I follow the wiring back and buy a new loom and connector? thanks for the responses much appreciated Quote
Stephen Posted November 20, 2016 Posted November 20, 2016 Just try unplugging the MAF and drying it in the airing cupboard first. After that I'd try a known working MAF. Quote
vijay Posted November 21, 2016 Posted November 21, 2016 If you end up buying a MAF, don't buy a cheap Ebay job from China as they cause issues Quote
Iangreenfield Posted November 21, 2016 Posted November 21, 2016 I have a maf available if you need one Quote
300944 Posted November 21, 2016 Author Posted November 21, 2016 how much for the maf iangreenfield Quote
Iangreenfield Posted November 21, 2016 Posted November 21, 2016 how much for the maf iangreenfield £95 posted Quote
tezteltez Posted November 21, 2016 Posted November 21, 2016 I've got a fault with the interior blower fan, first it worked fine, then only worked now & then, now does'ent work at all, is it possible to replace the bushes, or will i need a new unit, and if so does it need to be a 300zx blower or is the same unit fitted to other Nissan models. Quote
Stephen Posted November 21, 2016 Posted November 21, 2016 I've got a fault with the interior blower fan, first it worked fine, then only worked now & then, now does'ent work at all, is it possible to replace the bushes, or will i need a new unit, and if so does it need to be a 300zx blower or is the same unit fitted to other Nissan models. Your best off starting your own thread bud. Quote
300944 Posted November 21, 2016 Author Posted November 21, 2016 hi ian.. ill let you know by weekend. I work for euro car parts and I think ive got something coming down this week to try. if not ill buy yours thankyou Quote
Iangreenfield Posted November 21, 2016 Posted November 21, 2016 hi ian.. ill let you know by weekend. I work for euro car parts and I think ive got something coming down this week to try. if not ill buy yours thankyou Ok Quote
300944 Posted November 27, 2016 Author Posted November 27, 2016 Hi all just a note to say a big thankyou for all your help. Maf was to blame and got one from work all running. Quote
AndrewG Posted November 27, 2016 Posted November 27, 2016 Hi all just a note to say a big thankyou for all your help. Maf was to blame and got one from work all running. Out of curiosity, what MAF did you use from ECP? Quote She's so fine, there's no tellin' where the money went - Simply irresistible.
Iangreenfield Posted November 27, 2016 Posted November 27, 2016 Out of curiosity, what MAF did you use from ECP? Yes interesting Quote
300944 Posted November 27, 2016 Author Posted November 27, 2016 Well we didnt really list one. So I used some suppliers and got a delphi one delivered...not easy to get hold off Quote
AndrewG Posted November 27, 2016 Posted November 27, 2016 Well we didnt really list one. So I used some suppliers and got a delphi one delivered...not easy to get hold off Part number? Quote She's so fine, there's no tellin' where the money went - Simply irresistible.
300944 Posted November 27, 2016 Author Posted November 27, 2016 Af10211..... is this an incorrect part. Seems to work spot on Quote
JeffTT Posted November 27, 2016 Posted November 27, 2016 http://www.eraperformance.co.uk/index.php?route=product/product&path=60&product_id=176 Jeff Quote
Gaz 300 Posted November 28, 2016 Posted November 28, 2016 That looks like a good price for a new MAF. Quote
JeffTT Posted November 28, 2016 Posted November 28, 2016 Be interesting to see what kind of signal readings it produces on a Consultant screen. Jeff Quote
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