May have solved power problem

Bumpysbro · Post by **Bumpysbro** » July 19th, 2006, 3:51 pm

i replaced the maf sensor, reset the tps, the injectors are fine and spraying good. new o2 sensor, coolant sensor, i am getting a new tps tomorrow but i think its the distributor thats cauising all my problems. theres a CAmshaft position sensor built into which controls engine rpm and fuel delivery and timing. i timed my 0-60 yesterday at 17 seconds. lol and thats with around 185psi compression, i read this car can do 60 in about 9 seconds. is this true? i was shifting around 5k or 5300rpm and hit every shift right but the power just isnt there. hopefully i can get this problem fixed. thnx
Jon

ryanlindenberg · Post by **ryanlindenberg** » July 21st, 2006, 10:44 pm

i don't think that's what your problem is... i'd make sure you KNOW what the problem is before throwing any more money into your car.

did the TPS help?

Bumpysbro · Post by **Bumpysbro** » July 22nd, 2006, 3:37 pm

ya tps didnt help, what i think the prob is...the coil is going out because it tested bad for the primary and the secondary and im not getting a good enough spark to ignite all the fuel so the ecu dumps in more fuel that causes it to run rich. my dad agrees, ive reset the whole tps everything and still nothing. just no power behind the gas pedal, no exhaust leak, gettin 190psi in all cylinder, only codes im gettin is a 4 flash which is for a disty. i found a new one online for 190 ad it has a lifetime warranty. but im still gonna go through some more tests and make sure before i spend that much money. because there is only a couple things, ignition, compression, fuel. fuel pump tested fine, and the regulator seemed to be good. so thats my last guess, we never replaced the disty before.

ariesdude · Post by **ariesdude** » July 22nd, 2006, 5:15 pm

Could be time to do HEI mod - http://www.clubprotege.com/wil/howto/hei/index.htm

Also if the engine is running rich - you will have black soot deposit on the plugs - you can probably even see black soot on the exhaust tips.

reaper of souls · Post by **reaper of souls** » July 22nd, 2006, 6:00 pm

is there anywhere i can find a better walk through for the external msd blaster (maybe one for a i4 not a v6 ) i read throught that post and the wirong diagrams suck and i couldn't follow them that well

Reaperf

Bumpysbro · Post by **Bumpysbro** » July 22nd, 2006, 6:47 pm

Aries: ya im almost positive its running rich, i got lots of soot on the tail pipe and the plugs got this crap inside them. so ya might be time for a new disty, plugs, and wires. i was driving my dads saturn today with 88hp and it has about 200k on the original engine with no rebuild and it picks up better then mine. is the write up for the v6 hei mod the same for the 4cyl?

ariesdude · Post by **ariesdude** » July 23rd, 2006, 1:23 am

Yep the disty is pretty much the same for 6cyl and DOHC 4 cyl - the wire colors are the same as well. The wire position may be different - in my car the yel/blu wire for the tach was actually at the end - not the middle. It was pretty easy mod and took me about an hour and half over two days.

Also the engine would have bad power and may run rich if the timing is off or the timing belt is off (even by one tooth)

Bumpysbro · Post by **Bumpysbro** » July 23rd, 2006, 2:05 am

ya i thought that too, checked the timing and the whole timing belt scheme and everything is on, right on 10 degrees. took the car to a friend whos a mechanic, i had him test the disty and he said he got bad readings. did you see any improvements with the hei mod? i mean since im runnin stock internals, and a cai? oh i read on that hei mod site that if u pull a code from the ecu and its for a CAm angle sensor then they said my ignitor had either failed or messed up.

ariesdude · Post by **ariesdude** » July 23rd, 2006, 3:24 pm

I "felt" some improvements - but i dont have any proof to back it up. It did get rid of the cam sensor code though.

Cy · Post by Cy » July 24th, 2006, 1:03 am

i'm getting like 300ish KM to 3/4 of a tank... running the engine in the 4000-6500rpm range pretty much all the time...
But it still DUMPING fuel...It bubbles if I let off the throttle and coast on the engine....
I'm thinking O2 but could there be more problems?

ariesdude · Post by **ariesdude** » July 24th, 2006, 4:49 pm

O2 sensor, TPS, Timing, Clogged injectors, Clogged Air Filter, Coolant temp sensor etc ....

Bumpysbro · Post by **Bumpysbro** » July 24th, 2006, 5:14 pm

how much power can a bad disty rob from an engine? or if a tps is not fully screwed on tight? ahha cant find a screwfor the top one so had to use a shorter one.

ariesdude · Post by **ariesdude** » July 24th, 2006, 5:38 pm

Bumpysbro wrote:how much power can a bad disty rob from an engine? or if a tps is not fully screwed on tight? ahha cant find a screwfor the top one so had to use a shorter one.

The imprtant issue is that the screw should be on tight enough to prevent the TPS unit from moving around with engine vibrations and screwing up the TPS settings.
If its a disty sensor issue - it would probably show up in the timing i would guess.
Disty cap, rotor, plug wires could also affect air/fuel ratio indirectly i think.

Also did you reset the ECU after you replaced the MAF and stuff.....

Bumpysbro · Post by **Bumpysbro** » July 24th, 2006, 7:40 pm

ya reset the ecu after the maf and tps, reset it. but still gettin weird symptoms, injectors arent clogged getting good fuel pressure at the line. oh there are 2 wires on the 6 pin connection that attach to the speedometer right? my speedometer has been totally weird lately like driving 6krpm in 5th gear going 40mph or itll shake alot. haha its a phantom car, installed some glow gauges i had laying around and now the rpm needle wont go above 1k and the speedometer one stops at 60 lol.

ariesdude · Post by **ariesdude** » July 24th, 2006, 11:06 pm

Weird speedo - Sounds like ground problems

Not going above 1krpm/60mph - probably the needle is hitting the back somewhere and not able to move further