engine boging...

[justinsrad98]

Hello,

I have a 1989 SHO (standard) and I have some problem with the engine. When the engine is cold, it works perferctly and run strong. When it's warm ( after 35-45 minutes) the engine bog's at low RMP. ( below 3k)

When it's very hot outside ( more than 90F) the engine will bog and will stop completly after an hour of driving on the highway even if the temperature of the engine is still at the normal position...

Yesterday, after an hour of drive the car stop on the Hway 407 in Toronto and it was 92F outside. I've wait for an hour to cool down the car untill 21h30 ( the temperature was now at 80F and even lower at 4 am...) and I drove for 8 straight hours on the highway at 70 MPH (with a trailer) with no problem except when I was stoping for gaz the car have difficulties to accelerate below 3k but after 3k the engine rev up like a champ!


Facts:
code 11
I have 260 000km
new plugs
new O2 sensors
new battery terminal
I have a little bit of oil in the cylinder wall (I try to clean it every month or so...)

Help me!!! I don't want a new car!!!!

 

[NiNeTy Fo SHO]

Check your codes.... http://dalidesign.com/hbook/eectest.html

(the link didnt open for me right now, but has worked well in the past)

 

[justinsrad98]

code 11

 

[justinsrad98]

may be the fuel pump?

 

[Redline]

Dirty Fuel filter? Dirty MAF?

 

[justinsrad98]

what's the maf?