Glad you fixed it mate!!
Engine Code 33 and 45
Thread Starter
Racer
Joined: Oct 2006
Posts: 378
Likes: 20
From: East Hampton CT
Engine Code 33 and 45
Greetings,
I just got my first corvette and now its on the road. I got an SES light for 33 and 45. I down loaded the code 33 troubleshoot from another member and I was wondering if anyone has the 45 troubleshoot available? Agent 69?
Oh, its a 1987 4+3 black with gray interior. It needs alot of attention but it runs and drives
Also does anyone have the part numbers for the MAF Power Relay and MAF Sensor Burn-off Relay?
Thanks!
I just got my first corvette and now its on the road. I got an SES light for 33 and 45. I down loaded the code 33 troubleshoot from another member and I was wondering if anyone has the 45 troubleshoot available? Agent 69?
Oh, its a 1987 4+3 black with gray interior. It needs alot of attention but it runs and drives
Also does anyone have the part numbers for the MAF Power Relay and MAF Sensor Burn-off Relay?
Thanks!
Le Mans Master
Joined: May 2005
Posts: 5,214
Likes: 65
From: Queensland, AUSTRALIA
Sorry mate i dont have the numbers for the relays, they are both the same part though.
DTC 45 is a rich exhaust present.
Clear the codes out and see what comes back when you drive again, and if youve allready done this i would start with the DTC 33 and then clear codes again, just to see if it may have been causing the DTC 45.
DTC 45 is a rich exhaust present.
Clear the codes out and see what comes back when you drive again, and if youve allready done this i would start with the DTC 33 and then clear codes again, just to see if it may have been causing the DTC 45.
Thread Starter
Racer
Joined: Oct 2006
Posts: 378
Likes: 20
From: East Hampton CT
No more codes!
Yeah!
I replaced the cap and rotor that were nasty
! I also replaced the burn-off relay. I just picked up a second one to replace the power relay. I also got spark plug wires just for kicks. I get a slight bucking at low RPM's but what do expect from a almost 20 year old car with 93K miles. I'm also doing the TPS, IAC, and all the gaskets on the Throttle body. The idle jumps around alot sometimes and I think its the IAC or TPS. Will keep you posted.
P.S. - I also noticed the wire mess is missing. I have the Bosch MAF.
I replaced the cap and rotor that were nasty
! I also replaced the burn-off relay. I just picked up a second one to replace the power relay. I also got spark plug wires just for kicks. I get a slight bucking at low RPM's but what do expect from a almost 20 year old car with 93K miles. I'm also doing the TPS, IAC, and all the gaskets on the Throttle body. The idle jumps around alot sometimes and I think its the IAC or TPS. Will keep you posted.P.S. - I also noticed the wire mess is missing. I have the Bosch MAF.
Last edited by mcguirjf; Oct 19, 2006 at 04:42 PM.
Thread Starter
Racer
Joined: Oct 2006
Posts: 378
Likes: 20
From: East Hampton CT
Aaahhhhhhh!!!!!!!
Well last night I took apart my throttle body to clean and replace the TPS and IAC and one of the screws that holds the bottom IAC plate to throttle body broke.
I dropped off the TB at a machine shop with hopes he can drill and tap out the broken screw. What luck, it was the last damn screw as always!
The worst part is I had to commute with the GF in her Sentra, slow POS! Well hopefully I have good news Monday .
Also how do I set the TPS and IAC on the throttle body?
Thanks!
I dropped off the TB at a machine shop with hopes he can drill and tap out the broken screw. What luck, it was the last damn screw as always! The worst part is I had to commute with the GF in her Sentra, slow POS! Well hopefully I have good news Monday .Also how do I set the TPS and IAC on the throttle body?
Thanks!
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
There prettey easy...take a look at Vaders site, I think he has a step by step for you. On your TPS its very simple..turn key to ON, but don't start the engine you want to read the voltage at the TPS, with throttle close it should read 0.54 volts +/- 0.07 volts, you slowly open the throttle to wide open, it should read over 4 volts. Do you have a FSM?
Thread Starter
Racer
Joined: Oct 2006
Posts: 378
Likes: 20
From: East Hampton CT
I don't have a FSM but Agent 69 has posted a lot of helpful information. Please send me a link to vader's website. On the TPS measurement, where do you pull the voltage from? I see the wires, but where do you measure the voltage?
Thanks
Thanks
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Minimal idle
Couldn't find code 45, but AGENT 86 has it in his pdf's.
https://www.corvetteforum.com/techti...D=55&TopicID=2
Couldn't find code 45, but AGENT 86 has it in his pdf's.
https://www.corvetteforum.com/techti...D=55&TopicID=2
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Thread Starter
Racer
Joined: Oct 2006
Posts: 378
Likes: 20
From: East Hampton CT
still getting a code 45
Im still getting a code 45. I think the o2 sensor is new but I could be wrong. Will this play games with my idle? Also I discovered I have an adjustable fuel pressure regulator. Does anyone know what the pressure is suppose to be? I'm also going through about 2 quarts of oil every 3000 miles is this normal? I get smoke out the tail pipes some times. I've done the IAC the TPS and cleaned the throttle body. I hope I don't have to tear this engine apart. What is the compression values for my engine. Any help will be great!
Team Owner
Joined: Jan 2003
Posts: 20,254
Likes: 221
From: Summerland B.C. Canada
http://members.shaw.ca/corvette86/Code%2045.pdf
Fuel pressure should be about 35 lbs at idle with vac line connected. About 45 lbs when vac line is removed and plugged.
Fuel pressure should be about 35 lbs at idle with vac line connected. About 45 lbs when vac line is removed and plugged.
