ZX 16v

[welshpug]

Done nothing to this since mapping but drive it and put fuel in, after replacing that fuel pump.





This clips into a small anti-surge cradle affair in the bottom of the tank, works very well, as long as you remember which way round it goes and to fit the pickup pipe/gauze filter!

The Walbro replacement units are a lot smaller than the Bosch original unit, so had to pack out the plastic/rubber bits a bit.



The supplied pickup filter wasn't any use as it was for an upright application, but the inlet is smaller than the Bosch pump so the original pickup tube didn't fit, luckily the handy bits of packaging they come with did the trick...









It has been a little reluctant to start first turn but fires fine after a bit of pedal prodding and cranking, once running its no problem, I'd also noticed that part throttle cruise, i.e 5th at 70 was sometimes not as smooth as it could be, a glance at the lambda and you could see it was trying to correct it quite a bit, I recalled Sandy was not a fan of the PTFE gaskets, though I had never had any issues on the standard inlet, I did have a pair of Elring gaskets so decided to try them



That's after a little clean up, I couldn't remember leaving it particularly grubby but it was, so might have been part of it maybe?

Also swapped the starter motor at DCC's suggestion, not sure the starter made much difference, as I still had to prod the throttle pedal a little to get it to catch, no popping this time though, but once it did it settled to a rather low idle.



and the warm idle was quite steady too.





Still seems a little rich to me on part throttle, can only think it would be due to the new fuel pump though at no point during mapping was the old one struggling to keep up with demand, I think I will get a spare set of injectors serviced, another set of picos for the front set and go and see Sandy again.