a6 z6 mini me swap issues.....help
ricefighter
Wagonist
hello everyone.
i just did a a6 z6 mini me swap on my 88rt. its a straight up a6 bottom and z6 head. it has a comp cams valve springs. im using a p28 ecu. conversion obd0 to obd1 from monotech. it has 4 wire o2 sensor and gsr throttlebody.
my issues are the following.
code 41 which is o2 heater. i wired it incorrectly the first time. i dunno if i fried the ecu or the o2 heater itself.
the idle is not stable. it doesn't do hunting or up and down like there is vacuum leak. when it does cold start it idle higher like a 1k rpm but as soon as the temp needle moves up a little the rpm goes down and it dies, but once it reaches normal operating temp it some how stays at 750 rpm. it doesn't stay that way when i step on the gas and release it. somehow the engine struggle to put the rpm back to where it belongs at idle speed.
when i turn on the a/c, there is no idle up and the rpm goes down to a point that it dies.
i did some searching here and other forum but didn't find anything exactly or similar to my issues. if somebody here who have encountered this issues please feel free to comment. good ideas are surely welcome.
thanks in advance
i just did a a6 z6 mini me swap on my 88rt. its a straight up a6 bottom and z6 head. it has a comp cams valve springs. im using a p28 ecu. conversion obd0 to obd1 from monotech. it has 4 wire o2 sensor and gsr throttlebody.
my issues are the following.
code 41 which is o2 heater. i wired it incorrectly the first time. i dunno if i fried the ecu or the o2 heater itself.
the idle is not stable. it doesn't do hunting or up and down like there is vacuum leak. when it does cold start it idle higher like a 1k rpm but as soon as the temp needle moves up a little the rpm goes down and it dies, but once it reaches normal operating temp it some how stays at 750 rpm. it doesn't stay that way when i step on the gas and release it. somehow the engine struggle to put the rpm back to where it belongs at idle speed.
when i turn on the a/c, there is no idle up and the rpm goes down to a point that it dies.
i did some searching here and other forum but didn't find anything exactly or similar to my issues. if somebody here who have encountered this issues please feel free to comment. good ideas are surely welcome.
thanks in advance
Comments
if you do an engine management like chrome or hondata it should clear up the issue.
courses of action are as follows.
1. use a6 gasket which i don't like
2. remove the block for decking. i dunno if this a good idea.
3. have the other a6 block rebuild but this is costly since i have to buy parts such as piston rings gasket and etc.
if you have better idea pls let me know.
thank you for reading my post.
wagon..................4ever....................
i would recommend that you just do it right the first time. there is no better choice out there than to just take the block out and deck it. you wont have any headaches trying to guess if thats the issue if something else comes up.
also you wont have to buy new parts like you said.
also there is a 3 layer head gasket thats oem. i can give you the part number if you need it. i just need to look for it.
its just a pta to remove the block again. im still debating on the best solution to my issue.