Vauxhall Owners Network Forum banner

z20let

  1. [Zafira A] [99-05] Zafira GSi - Z20LET - Oil Leaks - Any suggestions

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    My Zafira GSi (Z20LET) is suffering from oil leaks - Cam cover, turbo pipes, sump, etc. If I replace a seal the pressure finds the next weakest point. So far I've checked / replaced: - Compression - Looks OK with 170psi on all 4 cylinders (dry test); no smoke from exhaust at all - Turbo...
  2. [Astra Mk4/G] [98-04] Z20let convertible 2001 Astra P1243 turbo bypass solenoid

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hey all, I have a z20let astra convertible. Originally it was a standard Z18xe but we did a turbo Z20let conversion on it at the beginning of the year. I have the spanner/car light up on the dash and my snap on code reader and even opcom give me P01243 turbocharger bypass solenoid hight voltage...
  3. [Zafira A] [99-05] Z20LET camshaft brackets torque settings

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Evening guys, just wondering if anyone knows the torque settings and pattern for the camshaft brackets and pattern for the Z20LET Engine as I’ve tried a google search on this with no luck at all! Any help would be very much appreciated. Thanks in advance guys.
  4. [Astra Mk4/G] [98-04] Astra G 1.8 Z18XE conversion to a Z20LER

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hey guys! I’m back again. After rebuilding my Astra 1.8’s engine, we got bored and came accross an Astra coupe for £300 with the Z20let engine in. After programming the car to my ignition and transponder unit I was able to start the car and it ran up good. We bought it for doing a turbo...
  5. [Zafira A] [99-05] Z20LET diy remap

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hi anyone got any advice or done a remap on a Z20let engine themselves before? Reason for asking is there is a video on YouTube that states it’s as easy as plugging in a Galletto 1260 cable using the software via laptop in to your obd2 port and reflashing the ecu with the ready made map .bin...
  6. [Zafira A] [99-05] Zafira gsi oil pressure switch

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hi guys, New to the forums, just wondering if anyone knows the location of the oil pressure switch on the z20let engine as I have an oil leak and suspect the pressure switch may be the culprit. Recently I replaced the rocker cover gasket as that was also leaking, this did solve the main oil...
  7. [Astra Mk4/G] [98-04] Z18let conversion to z20let. Need info

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Hi all. Have a tidy astra coupe 2003 z18xe 1.8. Just got new wheels. Sprayed the body kit to freshing it up now looking into the engine. I want to pull out the z18xe engine and replace it with a turbo engine. Was thinking the z20let? As far as i am aware the engine mount are the same. Question...
  8. [Vectra B] [95-02] Running F23srt box on Vec B

    Cavalier, Calibra, Vectra, Signum, Sintra & Insign
    Hello guys ! I was wondering if anyone has gone trough the hassle of mounting the f23srt box from astra G opc into a Vectra B. The problem is that the mounting points are different of f23 used in Vectras as they are in Astras. If someone has made planks to make it work it would be cool if the...
  9. [Astra Mk4/G] [98-04] Astra g intermittent starting

    Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
    Having intermittent starting issues with my Astra z20let. It all started few month ago when I noticed the cranking times too start up took a little longer than normal. Then for the past month trying to restart on a warm engine after 5 minutes sitting can take a good few turns. Nice healthy...
Top