topsnake
Viper Owner
Hello Vipermaniacs,
revived from the dead ones, here I am again. Hope you guys are fine! Some good news for me and some who are interested:
No fuel in the oil anymore! The EU-PCM working with 2 O2 sensors corrected any wrong injection rate. The car now runs even too lean. Not too rich anymore! The spark plugs are quite white, like if it would burn too hot.
Yes this is a story that never ends, but I have to end it, otherwise I will end my ex-mechanic.
My thought is, that I get leak air from somewhere through a broken gasket. I bought some stuff to fix it, but don't know where to start. Intake manifold gasket was brandnew. It could be, that I hit it somewhere, but I dont believe. I think, the injector gaskets are not 100% okay. Is there any kind of manual, how to switch or dismount / mount an injector? Is there any good procedure to find the spot where the leak air gets in?
I tried with brake cleaner, but it seems to be some smaller hole.
When I get on the gas, the engine jumps a little and on full throttle it sounds like it would discontinue ignition for a part of a second a few times in a row (right and left cylinder bank).
This is not a too dangerous fault, but anyhow very disgusting.
The fact, that the engine only shakes on full throttle and not on lower throttle is confirming the thought of a small leak. Only on high demand and high vacuum, the air gets through somewhere... Could be, doesn't it? That the spark plugs look lean could also confirm the leak air theory...
Also with my hardware store - oil in the engine, what I used to wash it from too fuelfuming substances, I had to drive slow and with low rpm. I didn't kick it over 3000/min since I have my new PCM in it.
Could this maybe be also a point, why it's like that? The fault with the joggling came after 200km or more. This more sounds like a hardware fault, what do you think?
Maybe my theories are all crap. Any help is welcome.
Greets and thanks
Dennis
revived from the dead ones, here I am again. Hope you guys are fine! Some good news for me and some who are interested:
No fuel in the oil anymore! The EU-PCM working with 2 O2 sensors corrected any wrong injection rate. The car now runs even too lean. Not too rich anymore! The spark plugs are quite white, like if it would burn too hot.
Yes this is a story that never ends, but I have to end it, otherwise I will end my ex-mechanic.
My thought is, that I get leak air from somewhere through a broken gasket. I bought some stuff to fix it, but don't know where to start. Intake manifold gasket was brandnew. It could be, that I hit it somewhere, but I dont believe. I think, the injector gaskets are not 100% okay. Is there any kind of manual, how to switch or dismount / mount an injector? Is there any good procedure to find the spot where the leak air gets in?
I tried with brake cleaner, but it seems to be some smaller hole.
When I get on the gas, the engine jumps a little and on full throttle it sounds like it would discontinue ignition for a part of a second a few times in a row (right and left cylinder bank).
This is not a too dangerous fault, but anyhow very disgusting.
The fact, that the engine only shakes on full throttle and not on lower throttle is confirming the thought of a small leak. Only on high demand and high vacuum, the air gets through somewhere... Could be, doesn't it? That the spark plugs look lean could also confirm the leak air theory...
Also with my hardware store - oil in the engine, what I used to wash it from too fuelfuming substances, I had to drive slow and with low rpm. I didn't kick it over 3000/min since I have my new PCM in it.
Could this maybe be also a point, why it's like that? The fault with the joggling came after 200km or more. This more sounds like a hardware fault, what do you think?
Maybe my theories are all crap. Any help is welcome.
Greets and thanks
Dennis