Reply With QuoteWhat ecu do you have? Timing? Spark? Injectors?
Running rich?
gday. Ive been suspecting for a while now that my 4age is running rich. ive been told by a few mechanics so im pretty sure that the problem. the car backfires alot! and blow out lots! of carbon.
I was wondering the best way to solve this?
Should i take it down to my local dyno tune and get it tunned?
What ecu do you have? Timing? Spark? Injectors?
FTP.Originally Posted by svenmate
i didnt put it in but im pretty sure its the stock 4age ecu.
obviously doesn't have an oxygen sensor, get one wired up and see what happens
FTP.
Moved to the TECH QUESTIONS forum.
and what happens if it does have an oxy sensor? check your plugs, you will know if its running rich if they are fouled up. check heat rating and make sure they are the right type of plugs.
Timing sounds out.
You'd notice a pig of a start up/stalling if the plugs were to cold, and you would also wouldn't really* get many/alot of backfires if it was the 02 sensor as it will only target rich at WOT.
it only happens pretty much every time i take my foot off the accelerator. It Pops after about 2 seconds
check your dashpot on the throttle body and make sure it is working. this stops the throttle snapping shut and allows if to close smoothly.
And check your base ignition timing with pins T1 & E1 bridged while your at it (timing light required)
Are you running bigger than OEM injectors?
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