Hi everyone, i have an Urs4 2.2t from 1994 that has a boost problem and i cant figure it out.
The setup is rs2 ecu with 380hk software (atleast it says 380hk on the chips and 3bar MAP) rs2 injectors and MAF, t3t4 turbo with a modified original manifold, 3inch exhaust all the way, fmic, 1.8t coils, walbro fuel pump.
The problem is that i dont get full boost, before it has always been around 1,5 - 1,6 bar on an external gauge, now i dont even get 0,5 bar all the sudden an the car feels lazy. Ive checked all the pressure hoses and i found a pipe with a hole in it but it didnt get better when i fixed that, checked all the vacuum hoses, the bypass valve, ive tried the test pressure the system and i dont noticed any leakage, the turbo i have dissasembled and found nothing strange, swapped the ecu and maf.
I am running a screampipe from the wastegate, and it never opens so i am out of ideas
Anyone that has a clue what the heck can be wrong?
Best regards
The setup is rs2 ecu with 380hk software (atleast it says 380hk on the chips and 3bar MAP) rs2 injectors and MAF, t3t4 turbo with a modified original manifold, 3inch exhaust all the way, fmic, 1.8t coils, walbro fuel pump.
The problem is that i dont get full boost, before it has always been around 1,5 - 1,6 bar on an external gauge, now i dont even get 0,5 bar all the sudden an the car feels lazy. Ive checked all the pressure hoses and i found a pipe with a hole in it but it didnt get better when i fixed that, checked all the vacuum hoses, the bypass valve, ive tried the test pressure the system and i dont noticed any leakage, the turbo i have dissasembled and found nothing strange, swapped the ecu and maf.
I am running a screampipe from the wastegate, and it never opens so i am out of ideas
Anyone that has a clue what the heck can be wrong?
Best regards
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