mg zt 1.8 turbo flat spot - Page 3

minimutly · 9th August 2014, 14:25

There seems to be a lot of guesswork going on here by people who don't even realise this is about a 1.8 petrol. Also, the "sensor" next to the air filter is a boost control solenoid, not an airflow sensor.
It seems this engine type has more than its fair share of issues, without home- brewed mods screwing things up.
The turbo actuator linkage one is interesting, never seen that before.
My daughters car has a weak mixture issue on load until the boost builds up, then the fuelling increases, the revs do likewise and it's away like a train.
I fitted a lambda reader, which pointed at a failed lambda, changed this, disconnected the battery, and it's much improved, but still weak on mid/full throttle until the boost kicks in. I'm going to monitor the map sensor output to see if that's performing as it should, after that it could be the fuel pressure regulator, then I'm stumped.
It would be nice if my obdII reader worked on this car, but sadly not. Can anyone recommend one that does?
All the best,
Huw

FLYING BANANA · 9th August 2014, 14:30

These posts date back to 2010.

minimutly · 9th August 2014, 14:52

Yes realise that. I had a search before posting, expecting to find one that fitted, but it seems there are a multitude of different issues that afflict the 1.8t.
I'm hoping someone will know the answer to my obd reader question though.
Huw

suzublu · 9th August 2014, 15:02

Quote:

Originally Posted by minimutly

Yes realise that. I had a search before posting, expecting to find one that fitted, but it seems there are a multitude of different issues that afflict the 1.8t.
I'm hoping someone will know the answer to my obd reader question though.
Huw

Most generic code readers work with the petrol engined cars, from an ELM with the Torque app on android phones/tablets, to more expensive one's, like the one i use...

minimutly · 9th August 2014, 23:48

Does anyone have a 1.8 mg turbo map sensor for sale or borrow?
Thanks,
Huw

9th August 2014, 14:30	#22
FLYING BANANA Moderator/Club Shop MG ZT 1.8t+. No.3 of 4 in Sunspot Yellow & Ford Fiesta in Black. Join Date: Aug 2010 Location: Rattler Farm Posts: 22,565 Thanks: 9,270 Thanked 15,645 Times in 6,806 Posts	These posts date back to 2010. __________________ 233,431. That’s our second meet done, no.3 next weekend. onen hag oll

9th August 2014, 14:25	#21
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	There seems to be a lot of guesswork going on here by people who don't even realise this is about a 1.8 petrol. Also, the "sensor" next to the air filter is a boost control solenoid, not an airflow sensor. It seems this engine type has more than its fair share of issues, without home- brewed mods screwing things up. The turbo actuator linkage one is interesting, never seen that before. My daughters car has a weak mixture issue on load until the boost builds up, then the fuelling increases, the revs do likewise and it's away like a train. I fitted a lambda reader, which pointed at a failed lambda, changed this, disconnected the battery, and it's much improved, but still weak on mid/full throttle until the boost kicks in. I'm going to monitor the map sensor output to see if that's performing as it should, after that it could be the fuel pressure regulator, then I'm stumped. It would be nice if my obdII reader worked on this car, but sadly not. Can anyone recommend one that does? All the best, Huw

9th August 2014, 14:52	#23
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	Yes realise that. I had a search before posting, expecting to find one that fitted, but it seems there are a multitude of different issues that afflict the 1.8t. I'm hoping someone will know the answer to my obd reader question though. Huw

9th August 2014, 23:48	#25
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	Does anyone have a 1.8 mg turbo map sensor for sale or borrow? Thanks, Huw