Just finished install and have a problem. The car will start and rev up to 2500rpm than drop back, stall and die. Could this be fuel pressure? Havent checked yet. It is a 87 350tpi with 165 MAF. If i give it gas it will stay running running if its above 3000
Any suggestions?

 

Check your TPS, i think i had a problem like this before on my stock TPI and my TPS was unplugged.

 

tps is plugged in, but i have not checked the voltage on it yet. Checked fuel pressure and it is set at 60psi I have the afpr from holley and it is a PITA to adjust just was wondering if that could be my prob
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tps is plugged in, but i have not checked the voltage on it yet. Checked fuel pressure and it is set at 60psi

 

This happened to me when I put my stealthram on it turned out to be a ripped plenum gasket check that since then I have been takcing them to the plenum before putting them on and it works alot easier

 

replaced gaskets and set tps to 5.4 fuel pressure to 45 psi car will start jump to 2200 rpms and drop down start to bog and then die. could this be timming? havent checked it yet but put dist back in the same way it came out cap too. no light to check yet it runs better now that fuel pressure is down any ideas

 

Did you have a chip burned for the combo or stock tune?

 

its still stock, but i have a custom to install but it on is a stock tune arap bin with a 6e mask. No cold start and egr deleted otherwise stock for 1989

 

still sounds like a vacume leak. is the motor stock other wise? even a small cam will run with the stock chip. I would double check gaskets and what you have for plugs and fittings to the intake. how did you run the pcv? TB vacume hoses? canister ? brake booster and even the injector o-rings are the sealing to the lower intake?

 

motor is still stock, pcv and tb hoses i put back to the same locations. brake booster hvac afpr vacuum and sensor in back of plenum are all connected, felpro 1205 intake gaskets and i just cut new plenum gaskets when i put in gear it will run for a second and have good brake vacuum would timming cause this?

 

Ok im retarded LOL I forgot to compensate for the adj maf sensor DUH. The air that the hsr and the tpis 58mm throttle body was pulling in was way more then the maf was used to. Therefore sending rediculess amount of gas to compensate for what the ecm was reading LOL
Thanks for all your help for someone who had a brain fart
Thanks again