two issues

katnip

katnip

the car is black. I swear
04 STi

77k

the r. diff temp light comes on when I start the car up in the morning and goes on and off for about 2 miles and I never see it again. thoughts?

when coasting or driving at low speeds when barely on the throttle the car "surges" feels light I am on and off the throttle. also has a very rough, fluctuating idle. thoughts?

 
get rid of that clunker, sell it to Nigel, he is financially capable to buy anything now that he has sponsorshhip from Ye Esteemeded Tourism Minister of Nigeria.

perhaps the R diff temp light is hapnin due to low fluid level? other possibility is bad ground to diff temp sensor

the low speed surging may well be an O2 sensor issue, I am having same thing with the SVT and yesterday it threw a PO133 code, "02 sensor slow response" aka , "it's almost pooched."

 
x2 check rDiff fluid, maybe tell your mechanic to drain and refill for safety sake and mostly peace of mind. I know he'll do it for cheap money. STI LSD fluid not so cheap.

I don't have any suggestions for the surging but I am disappointed...

when coasting or driving at low speeds when barely on the throttle the car "surges"
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Whats wrong with you!?!?! "low speeds...barely on the throttle" Do you feel alright? You got a fever?
 
x2 check rDiff fluid, maybe tell your mechanic to drain and refill for safety sake and mostly peace of mind. I know he'll do it for cheap money. STI LSD fluid not so cheap. I don't have any suggestions for the surging but I am disappointed... Whats wrong with you!?!?! "low speeds...barely on the throttle" Do you feel alright? You got a fever?
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do I need to run special fluid in the rear diff? I was gonna replace it with some amsoil synthetic.

I know, but traffic sometimes requires slow speeds. I don't like it either

 
happy i found this that surge you speak of im pretty sure mine does the same thing when not on the throttle just cruising and it seems to happen on and off i only noticed it a couple times on the highway

 
happy i found this that surge you speak of im pretty sure mine does the same thing when not on the throttle just cruising and it seems to happen on and off i only noticed it a couple times on the highway
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what do you have for mods, if any?

 
had a similar low speed surge in the SVT, poof it throws CEL for 02 sensor, replace sensor, and presto de surging izz gone.

 
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