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sleeping8t7 · **VNT Question**

Maybe someone can help.....I have a '89 CSX with a ND computer on it. When I reach 95mph, I get fuel cut, I boost only to 10psi and check engine light comes on. What could it be??

csxvnt257 · 04-25-2005, 04:53 PM

Quote:

Originally Posted by sleeping8t7

Maybe someone can help.....I have a '89 CSX with a ND computer on it. When I reach 95mph, I get fuel cut, I boost only to 10psi and check engine light comes on. What could it be??

Look at vacuum hoses first. Always seem to be a problem with them. What code is set with check engine light ?

sleeping8t7 · 04-26-2005, 06:20 PM

The code I get is a internal code, like a computer code. I forgot right now but it's a computer code.

tarkus1 · 04-26-2005, 06:34 PM

I think all modified SBECs will give a 53 code. Mine have so far, even though nothing is wrong with it.

**Will Martin** · 04-26-2005, 07:05 PM

'Sounds' like there may be a leak like Lynn said. Have you checked or replaced all the vac lines? Especially check the ones going from the solenoid to the turbo canister.

sleeping8t7 · 04-27-2005, 05:19 PM

Ok, I'll check it out.

Jckrieger · 04-29-2005, 02:50 PM

The reason the modified computers throw the code 53 is because the programmer didn't take the time to fix the checksum error that occurs when you modify the code. No big deal. From what it sounds like, you may have a leak somewhere that is making the boost gage say 10psi, when the map is reading ~15.